Question

al 2x+1=5
b)
-2x-7=17

Answer 1

Resposta:

a. $x = 2$

b.$x = -12$

Explicação passo-a-passo:

a. $2x + 1 = 5\\2x = 5 - 1\\2x = 4\\x = 2$

b. $-2x - 7 = 17\\-2x = 17 + 7\\-2x = 24\\2x = -24\\x = 12$