Question

cuanto es
2.(y+5)=8+3.(y.5)
4(x-5)+16=16+5.(x-2)
7z+4.(2z-3)=(60z+24):(-2)
-4+4.(8-3x)=-2.(2+3x)-8
porfa ayúdeme​

Answer 1

Respuesta:

$y + 5 = 8 + 3 \times y \times 5 \\ y + 5 = 8 + 15y \\ 5 - 8 = 15y - y \\ - 3 = 14y \\ - \frac{3}{14} = y$

$4(x - 5) + 16 = 16 + 5(x - 2) \\ 4x - 20 + 16 = 16 + 5x - 10 \\ 4x - 4 = 6 + 5x \\ - 4 - 6 = 5x - 4x \\ - 10 = x$

$7z + 4(2z - 3) = (60z + 24) \div ( - 2) \\ 7z + 8z - 12 = - 30z - 12 \\ 15z - 12 = - 30z - 12 \\ 15z + 30z = - 12 + 12 \\ 45z = 0 \\ z = \frac{0}{45} \\ z = 0$

$- 4 + 4(8 - 3x) = - 2(2 + 3x) - 8 \\ - 4 + 32 - 12x = - 4 - 6x - 8 \\ 28 - 12x = - 12 - 6x \\ 28 + 12 = - 6x + 12x \\ 40 = 6x \\ \frac{40}{6} = x \\ \frac{20}{3} = x$