Question

4 x + 5 = x + 20 ???​

Answer 1

Explicação passo-a-passo:

4x - x = 20 - 5

3x = 15

x = 15/3

x = 5.

Answer 2

$4x + 5 = x + 20 \\ 4x - x = 20 - 5 \\ 4.x - 1.x = 15 \\ (4 - 1).x = 15 \\ 3.x = 15 \\ x = \frac{15}{3} \\ x = 5$