Question

DETERMINE O VALOR DE X NAS IGUALDADES A SEGUIR
A)x+x-4=17-2x+1

B)x+2x+3-5x=4x-9

Answer 1

Explicação passo-a-passo:

x+x-4=17-2x+1

2x-4=-2x+18

2x+2x=18+4

4x=22

x=22÷2/4÷2

x=11/2

x+2x+3-5x=4x-9

x+2x-5x+3=4x-9

3x-5x+3=4x-9

-2x+3=4x-9

-2x-4x=-9-3

-6x=-12(-1)

6x=12

x=12/6

x=2