Question

Resolva a equação 2x − 4 = 5x + 7, e marque a opção correta:
a) V = {- 11/3}
b) V = {2}
c) V = {-7/11}
d) V = {1/2}

Answer 1

2x − 4 = 5x + 7

2x - 5x = 7 + 4

-3x = 11 (-1)

3x = -11

x = -11/3

a) V = {- 11/3}