Question

a) 8x - 5 = 3
b) 5x - 16 = 4
c) 3x + 7 = 13
d) 6x + 5 = 17
e) x + 8 = 8
f) 4x - 1 = 1
g) x + 3 = 1
h) 9x - 3= 15
i) 2x + 5 = 21
j) 3x - 12 = 0​

Answer 1

Resposta:

A) 1

B) 4

C) 2

D) 2

E) 0

F) 1/2

G) -2

H) 2

I) 8

J) 4

Explicação passo-a-passo:

$8x = 8 \\ x = 1$

$5x = 20 \\ x = 4$

$3x = 6 \\ x = 2$

$6x = 12 \\ x = 2$

$x + 8 = 8 \\ x = 0$

$4x = 2 \\ x = \frac{1}{2}$

$x + 3 = 1 \\ x = - 2$

$9x = 18 \\ x = 2$

$2x = 16 \\ x = 8$

$3x = 12 \\ x = 4$