a) x + 1/2 = 3/2
x= 3/2 - 1/2
x= 2/2
x= 1
b) x/7 = -2
x= -14
c) -9x + 8 = -43
-9x = -43 - 8
-9x = -51
x = -51/9
x = 5,6666...
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[tex]\huge\green{\boxed{\rm~~~\red{ A)}~\gray{x}~\pink{=}~\blue{1}~~~}}[/tex]
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[tex]\huge\green{\boxed{\rm~~~\red{ B)}~\gray{x}~\pink{=}~\blue{ -14 }~~~}}[/tex]
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[tex]\huge\green{\boxed{\rm~~~\red{ C)}~\gray{x}~\pink{=}~\blue{ \dfrac{17}{3} }~~~}}[/tex]
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[tex]\bf\large\green{\underline{\qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad}}[/tex]
[tex]\green{\rm\underline{EXPLICAC_{\!\!\!,}\tilde{A}O\ PASSO{-}A{-}PASSO\ \ \ }}[/tex]✍
❄☃ [tex]\sf(\gray{+}~\red{cores}~\blue{com}~\pink{o}~\orange{App}~\green{Brainly})[/tex] ☘☀
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☺lá, 087, como tens passado nestes tempos de quarentena⁉ E os estudos à distância, como vão⁉ Espero que bem❗ Acompanhe a resolução abaixo, feita através de algumas manipulações algébricas, e após o resultado você encontrará um link com mais informações sobre Soma de Frações que talvez te ajude com exercícios semelhantes no futuro. ✌
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Ⓐ[tex]\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad}}[/tex]✍
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[tex]\LARGE\gray{\boxed{\sf\blue{ x + \dfrac{1}{2} = \dfrac{3}{2} }}}[/tex]
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➡ [tex]\large\blue{\text{$\sf \dfrac{x}{2}= \dfrac{3}{2} - \dfrac{1}{2} $}}[/tex]
➡ [tex]\large\blue{\text{$\sf \dfrac{x}{2}= \dfrac{3 - 1}{2} $}}[/tex]
➡ [tex]\large\blue{\text{$\sf x = \dfrac{2}{2} $}}[/tex]
➡ [tex]\large\blue{\text{$\sf x = 1 $}}[/tex]
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[tex]\huge\green{\boxed{\rm~~~\red{ A)}~\gray{x}~\pink{=}~\blue{1}~~~}}[/tex] ✅
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Ⓑ[tex]\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad}}[/tex]✍
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[tex]\LARGE\gray{\boxed{\sf\blue{ \dfrac{x}{7} = -2 }}}[/tex]
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➡ [tex]\large\blue{\text{$\sf \dfrac{x}{7} = -2 $}}[/tex]
➡ [tex]\large\blue{\text{$\sf x = -2 \cdot 7 $}}[/tex]
➡ [tex]\large\blue{\text{$\sf x = -14 $}}[/tex]
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[tex]\huge\green{\boxed{\rm~~~\red{ B)}~\gray{x}~\pink{=}~\blue{ -14 }~~~}}[/tex] ✅
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Ⓒ[tex]\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad}}[/tex]✍
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[tex]\LARGE\gray{\boxed{\sf\blue{ -9x + 8 = -43 }}}[/tex]
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➡ [tex]\large\blue{\text{$\sf -9x = -43 - 8 $}}[/tex]
➡ [tex]\large\blue{\text{$\sf -9x = -51 $}}[/tex]
➡ [tex]\large\blue{\text{$\sf x = \dfrac{51}{9} $}}[/tex]
➡ [tex]\large\blue{\text{$\sf x = \dfrac{17}{3} $}}[/tex]
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[tex]\huge\green{\boxed{\rm~~~\red{ C)}~\gray{x}~\pink{=}~\blue{ \dfrac{17}{3} }~~~}}[/tex] ✅
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[tex]\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad}}[/tex]
✈ Soma de Frações (https://brainly.com.br/tarefa/36564678)
[tex]\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad}}[/tex]✍
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[tex]\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad}}[/tex]☁
☕ [tex]\bf\Large\blue{Bons\ estudos.}[/tex]
([tex]\orange{D\acute{u}vidas\ nos\ coment\acute{a}rios}[/tex]) ☄
[tex]\bf\large\red{\underline{\qquad \qquad \qquad \qquad \qquad \qquad \quad }}\LaTeX[/tex]✍
❄☃ [tex]\sf(\gray{+}~\red{cores}~\blue{com}~\pink{o}~\orange{App}~\green{Brainly})[/tex] ☘☀
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[tex]\gray{"Absque~sudore~et~labore~nullum~opus~perfectum~est."}[/tex]
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