Question

A)18x+2=9x+10


B) 2.(x+5)=4+2.(x-3)-5x-2

C)3x+4=x-5

D)5.(m+1)-3.(2m+1)=4.(5-m)

Answer 1

Resposta:

a)18x-9x=10-2

9x=8

x=8÷9

x=0.888...

B)2x+10=4+2x-6-5x-2

5x=14

x=14÷5

x=2.8

C) 2x=-9

x=9÷2

x=4.5

D)5m+5-6m-3=20-4m

-5m=18

m=18÷5

m=3.6