Question

resolva as esquaçõs:

A) 4x+7=22-x
B) 2x-7-3x=25-2
C) 15x+9-x=6x+12-27

Answer 1

Resposta:

A) 4x+7=22-x

4x+x=22-7

5x=15

x=15/5

x= 3

B) 2x-7-3x=25-2

2x-3x=25-2+7

-x= 30

x= -30

C) 15x+9-x=6x+12-27

15x-x-6x=12-27-9

8x=-24

x=-24/8

x=-3

Answer 2

Resposta:

A)4x+7=-22

4x=-22-7

4x=-29

x=29/4

x=7,25

B)2x-7-3x=25-2

2x-3x=25-2+7

2x-3x=30

-1x=30 (-1)

1x=30

x=30/1

x=-30

C)15x+9-x=6x+12-27

15x-x-6x=+12-27-9

8x=-24

x=-24/8

x=-3

espero ter-lhe ajudado