Question

Descubra o valor de X das questões abaixo.

a) 2× - 28 = × + 18


b) 5× - 3 = 2× + 9

URGENTEEEEEE​

Answer 1

Resposta:

$a)2x - 28 = x + 18$

$2x + x = 18 - 28$

$3x = - 10$

$x = - \frac{10}{3}$

$b)5x - 3 = 2x + 9$

$5x - 2x = 9 + 3$

$3x = 12$

$x = 12 \div 3$

$x = 4$