Question

Qual o valor de 4(x+2)-2(x-2)=30? *
me respondem rápido pfvr é pra hj​

Answer 1

$4 \times x \: \: e \: \: 4 \times 2$

$4x + 8 - 2(x - 2) = 30$

$- 2 \times x = - 2x$

$- 2 \times (- 2) = + 4$

$4x + 8 - 2x + 4 = 30$

$4x - 2x = 30 - 8 - 4$

$2x = 30 - 12$

$2x = 18$

$x = \frac{18}{2}$

$x = 9$

$4(9 + 2) - 2(9 - 2) = 30$

$44 - 14 = 30$

$30 = 30$