Question

3x + 7 = x - 3

ajuda por favor
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Answer 1

$\large\sf{}3x + 7 = x - 3 \\\large\sf{}3x + 7 - x = - 3 \\ \large\sf{}3x - x = - 7 - 3 \\ \large\sf{}2x = - 7 - 3 \\ \large\sf{}2x = - 10 \\ \\ \large\sf{}x = \dfrac{-10}{ 2} \\ \\ \large\sf{}{\large\boxed{\boxed{  { \large \sf x = - 5}}}}$

${\large\boxed{\boxed{  { \large \sf Bons~Estudos }}}}$