Question

calcule as equação do primeiro grau
a) 5x-40=2-x
b) 20+6x=-2x+26​

Answer 1

Resposta:

a) 5x-40=2-x

5x + x = 2+40

6x=42

x=42/6

x=7

B) 20+6x= -2x+26

6x+2x=26-20

8x=6

x=6/8

x=3/4