Question

15×+10=8×-4=?
Conta e resposta

Answer 1

$15x + 10 = 8x - 4 \\ 15x - 8x = - 4 - 10 \\ 7x = - 14 \\ x = - \frac{14}{7} \\ x = - 2$


S = {-2}

Answer 2

15x + 10 = 8x - 4

15x - 8x = - 4 - 10

7x = - 14

x = - 14 / 7

x = - 2