Question

13x-54+12x-36+7x=18x+50 quanto ?

Answer 1

Resposta: 10

Só somar tudo que for igual e passar para lados diferentes

Answer 2

$\large\bm{13x - 54 + 12x - 36 + 7x = 18x + 50} \\\\ \large\bm{}32x - 54 - 36 = 18x + 50 \\\\ \large\bm{}32x - 90 = 18x + 50 \\\\ \large\bm{}32x - 90 - 18x = 50 \\\\\large\bm{}32x - 18x = 50 + 90 \\ \\ \large\bm{}14x = 50 + 90 \\\\ \large\bm{}14x = 140 \\\\ \bm{\large\boxed{\boxed{  { \large \bm{ x = 10 }}}}}$

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