Question

20 = 5x
3x - 12 = 0
2x - 6=0

Answer 1

Explicação passo-a-passo:

$20 = 5x \\ \frac{20}{5} = x \\ x = 4 \\ \\ 3x - 12 = 0 \\ 3x = 12 \\ x = \frac{12}{3} \\ x = 4 \\\\ 2x - 6 = 0 \\ 2x = 6 \\ x = \frac{6}{2} \\ x = 3$

Bons estudos!!!

Answer 2

Resposta:

20/5=x

x=20/5

x=4

3x-12=0

3x=0+12

3x=12

x=12/3

x=4

2x-6=0

2x=0-6

2x=6

x=6/2

x=3