Question

Ms ajude
7x -3 ( 5x+2) = 4 ​

Answer 1

Olá

$\LARGE{}7x - 3(5x + 2) = 4 \\ \LARGE{}7x - 15x - 6 = 4 \\ \LARGE{} - 8x - 6 = 4 \\ \LARGE{} - 8x = 4 + 6 \\ \LARGE{} - 8x = 10 \\ \LARGE{}\LARGE\boxed{x = - \: \frac{5}{4} }$

$\mathrm{}{\large\boxed{\boxed{  { \large \tt Bons \: \: Estudos}}}}$

Answer 2

Resposta:

1,25.

Explicação passo a passo:

7x - 3( 5x + 2) = 4 ​

7x - 15x - 6 = 4

7x - 15x = 4 + 6

8x = 10

x = 10/8

x = 1,25.