Question

2x+3
---------=3 e a outra e 7(x+2)=-6
3

Answer 1

a)
(2x+3)/3 = 3 --> 2x+3 = 3.3 --> 2x+3 = 9 --> 2x = 9-3 --> 2x = 6 --> x = 6/2 --> x = 3

b)
7(x+2) = -6
7x+14 = -6
7x = -6-14
7x = -20
x = -20/7