Question

resolva as equações
6x+14+3x=2x+158-x

Answer 1

$6x+14+3x=2x+158-x\\\\ 6x+3x+14=2x-x+158\\\\ 9x+14=x+158\\\\ 9x-x=158-14\\\\ 8x=144\\\\ x=\dfrac{144}{8}\\\\ \boxed{x=18}$

Answer 2

6x+14+3x=2x+158-x
9x + 14 = x + 158
Deixando x de um lado e os numeros de outro, e invertendo os sinais:
8x = 144
x = 18