Question

calculos ou denucio
$\frac{3x}{7} - 5 = x - \frac{3}{7}$
​

Answer 1

3x/7 - 5 = x - 3/7

7*(3x/7 - 5) = 7*(x - 3/7)

21x/7 - 35 = 7x - 21/7

3x - 35 = 7x - 3

3x - 7x = -3 + 35

-4x = 32

x = -32/4

x = -8

Answer 2

Resposta:

3x/7 - 5 = x - 3/7.

3x - 35 = 7x - 3.

3x - 7x = - 3 + 35.

-4x = 32.

x = - 32/4

x = - 8.