Question

GENTE É URGENTE ME AJUDEM

a) 2x + 6=x+18

b) 5x -3=2x+9

c) 2x - (x-1) =5 ​

Answer 1

Resposta:

A. 12

B. 4

C. 4

Explicação passo a passo:

Answer 2

Resposta:

a) 12

b) 4

c) 4

Explicação passo a passo:

a) 2x + 6 = x + 18

$2x + 6 = x + 18\\\\2x-x=18-6\\\\x=12$

b) 5x - 3 = 2x + 9

$5x - 3 = 2x + 9\\\\5x-2x=9+3\\\\3x=12\\\\x=\frac{12}{3}\\\\x=4$

c) 2x - (x - 1) = 5

$2x - (x - 1) = 5\\\\2x-x+1=5\\\\x=5-1\\\\x=4$