Question

5×(×+2)-2×(3×-1)=13 Qual o valor de ×​

Answer 1

Vamos là.

5*(x + 2) - 2*(3x - 1) = 13

5x + 10 - 6x + 2 = 13

6x - 5x = 12 - 13

valor de x:

x = -1