Question

Encontre o valor de A:

4X +8 (-X +7) = 2X +13

Answer 1

$4x + 8( - x + 7) = 2x + 13 \\ 4x - 8x + 56 = 2x + 13 \\ 4x - 8x - 2x = - 56 + 13 \\ - 4x - 2x = - 43 \\ - 6x = - 43 \\ x =\frac{43}{6} = 7.1$

Bons estudos!!

Answer 2

4X +8 (-X +7) = 2X +13

-4x + 56 = 2x + 14

56 = 2x + 13 + 4x

56 = 6x + 13

56 - 13 = 6x

43 = 6x

x = 43/6