Question

resolva as equações:

a) 7x-8=-2x+1

b) 2(3x+1)=8

c) x+1/2+x+2/3=x​

Answer 1

Explicação passo-a-passo:

A)

7x+2x=1+8=

9x=9

×=9/9

×=1

b)

6×+2=8

6×=8-2

6×=6

×=6/6

x=1