Question

Ajudem pfv. dou 83 pontos, tudo oque eu tenho...

Answer 1

Resposta:

(1)

3x+10=2x

3x-2x=-10

x=-10

(3)

2x+20=5x-10

30=3x ==>x=10

(3)

x/6-1=2/3

x-6=4

x=10

(2)

3-2x-6=x-18

15==3x

x=5

(1)

x/4-2=(x+1)/2

x-8=2*(x+1)

x-8=2x+2

-10=x