Question

como resolver esta questão 2x+ 7/3=15

Answer 1

2x + 7/3 = 15 (3)

6x + 21/3 = 45

6x + 7 = 45

6x = 45 - 7

6x = 38

x = 38 / 6

Resposta: 38/6

Answer 2

$2x + \frac{7}{3} = 15 \\ 2x = 15 - \frac{7}{3} \\ 2x = 15 \times \frac{3}{3} - \frac{7}{3} \\ 2x = \frac{45}{3} - \frac{7}{3} \\ 2x = \frac{45 - 7}{3} \\ 2x = \frac{38}{3} \\ x = \frac{38}{3} \times \frac{1}{2} \\ x = \frac{38}{6}$

S = {38/6}