Question

preciso de ajuda com o passo a passo pfvr!!!

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Answer 1

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$\huge\green{\boxed{\rm~~~\red{1)~e)}~\blue{ (-38; -14) }~~~}}$

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$\huge\green{\boxed{\rm~~~\red{ 2)}~\blue{ N.D.O. }~~~}}$

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$\green{\rm\underline{EXPLICAC_{\!\!\!,}\tilde{A}O\ PASSO{-}A{-}PASSO\ \ \ }}$✍

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☺lá, Nomem, como tens passado nestes tempos de quarentena⁉ E os estudos à distância, como vão⁉ Espero que bem❗ Acompanhe a resolução abaixo. ✌

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Ⓐ$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad}}$✍

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I) $\large\blue{\sf 2(x + 1) - 3(y + 2) = x }$

➡ $\large\blue{\sf 2x + 2 - 3y - 6 = x }$

➡ $\large\blue{\sf 2x - x - 4 = 3y }$

➡ $\large\blue{\sf x - 4 = 3y }$

➡ $\large\blue{\sf y = \dfrac{x - 4}{3} }$

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II) $\large\blue{\sf \dfrac{x}{4} - \dfrac{2(y - 1)}{4} = -2}$

➡ $\large\blue{\sf \dfrac{x}{4} - \dfrac{2y - 2}{4} = -2 }$

➡ $\large\blue{\sf \dfrac{x - 2y + 2}{4} = -2 }$

➡ $\large\blue{\sf x - 2y + 2 = -2 \cdot 4 }$

➡ $\large\blue{\sf x - 2y + 2 = -8 }$

➡ $\large\blue{\sf x + 8 + 2 = 2y }$

➡ $\large\blue{\sf x + 10 = 2y }$

➡ $\large\blue{\sf y = \dfrac{x + 10}{2} }$

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☔ Sendo y = y temos que

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➡ $\large\blue{\sf \dfrac{x - 4}{3} = \dfrac{x + 10}{2} }$

➡ $\large\blue{\sf 2 \cdot (x - 4) = 3 \cdot (x + 10)}$

➡ $\large\blue{\sf 2x - 8 = 3x + 30}$

➡ $\large\blue{\sf 2x - 3x = 30 + 8}$

➡ $\large\blue{\sf -x = 38}$

➡ $\large\blue{\sf x = -38}$

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➡ $\large\blue{\sf y = \dfrac{-38 + 10}{2} }$

➡ $\large\blue{\sf y = \dfrac{-28}{2} }$

➡ $\large\blue{\sf y = -14 }$

$\LARGE\green{\boxed{\rm~~~\red{ e)}~\blue{ (-38; -14) }~~~}}$ ✅

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Ⓑ$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad}}$✍

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➡ $\large\blue{\sf x^2 - 3\diagup\!\!\!\!{x} - 3 = 6 - 3\diagup\!\!\!\!{x} }$

➡ $\large\blue{\sf x^2 - 3 = 6 }$

➡ $\large\blue{\sf x^2 = 6 + 3}$

➡ $\large\blue{\sf x^2 = 9}$

➡ $\large\blue{\sf \sqrt{x^2} = \pm \sqrt{9}}$

➡ $\large\blue{\sf x = \pm 3}$

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✋ Como nenhuma das opções confere com as duas soluções encontradas então nossa resposta será Nenhuma das Alternativas.

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$\Huge\green{\boxed{\rm~~~\blue{ N.D.O. }~~~}}$ ✅

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$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad}}$☁

☕ $\bf\Large\blue{Bons\ estudos.}$

($\orange{D\acute{u}vidas\ nos\ coment\acute{a}rios}$) ☄

$\bf\large\red{\underline{\qquad \qquad \qquad \qquad \qquad \qquad \quad }}\LaTeX$✍

❄☃ $\sf(\gray{+}~\red{cores}~\blue{com}~\pink{o}~\orange{App}~\green{Brainly})$ ☘☀

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$\gray{"Absque~sudore~et~labore~nullum~opus~perfectum~est."}$