Question

A) 5x+9=3x+7
B) x+9=-4x-29
C) 6x-8=3x+12
D) x=50-10

Answer 1

Resposta:

A) 5x-3x=7-9

2x=-2

x=-2/2

x=-1

B) x+4x=-29+9

5x=-20

x=-20/5

x=-4

C) 6x-3x=12+8

3x=20

x=20/3

D) x=40

Explicação passo-a-passo: