Question

Resolva as equações:

a) 2x+3 = −1
5

Answer 1

$2x=-1-3\\2x=-4\\x=\frac{-4}{2}\\x=-2$

Answer 2

2x+3= -15

2x = -15-3

 x = -18/2

  x = -9

Resposta → S= {-9}