Question

responder aí por favor​

Answer 1

Resposta:

A: 12/21

B: -6

C: 6/5

D: -8/2

Explicação passo-a-passo:

a)4 (x+3)-x = 24+x

4x+12-x = 24x

4x-x-24x = -12

4x-25x = -12

(-1) -21x = -12 (-1)

21x = 12

x = 12/21

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

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

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

x = -7+1

x = -6

c)4(2x-1) = 3(x+2)

8x-4 = 3x+2

8x-3x = 2+4

5x = 6

x = 6/5

d)7x+1 = 5x-7

7x-5x = -7-1

2x = -8

x = -8/2