Question

A) 3 (x + 3 ) - 1 = 2

B) 3 (x + 2 = 2 ( x - 7)

C) 3 (x + 2) - 1 = 2 (x + 3) - 7

D) 3 (x + 1) + 2 = 5 + 2 (x - 1)

E) 2 (x + 1) + 5 (x - 1) = 7

F) 4 x + 4 + 18 x - 6 = 6 x + 3 - 37

G) 2 x + 5 =19

Boa noite! alguém pode me ajuda
??​

Answer 1

Oiê!

a)3.(x+3)-1=2

3x+9-1=2

3x=2-8

3x=-6

x=-6/3

x=-2

b)3.(x+2)=2.(x-7)

3x+6=2x-14

3x-2x=-14-6

x=-20

c)3.(x+2)-1=2.(x+3)-7

3x+6-1=2x+6-7

3x-2x=-5+6-7

x=-6

d)3.(x+1)+2=5+2.(x-1)

3x+3+2=5+2x-2

3x-2x=5-5-2

x=-2

e) 2.(x + 1) + 5.(x - 1) = 7

2x+2+5x-5=7

7x=7-7

7x=0

x=-7

f) 4 x + 4 + 18 x - 6 = 6 x + 3 - 37

22x-2=6x+3-37

22x-6x=3-37+2

16x=-32

x=-32/16

x=2

g) 2 x + 5 =19

2x=19-5

2x=14

x=14/2

x=7

espero ter ajudado