Question

Alguém me ajuda rápido por favor!
A) -2+2x=3-3x



B) x+4x-36=18x+60+43

Answer 1

Resposta:

$A) -2+2x=3-3x$

$2x-2=3-3x$

$2x-2=-3x+3$

$2x-2+2=-3x+3+2$

$2x=-3x+5$

$2x+3x=-3x+5+3x$

$5x=5$

$\frac{5x}{5} =\frac{5}{5}$

$x=1$

$B) x+4x-36=18x+60+43$

$5x-36=18x+60+43$

$5x-36=18x+103$

$5x-36+36=18x+103+36$

$5x=18x+139$

$5x-18x=18x+139-18x$

$-13x=139$

$\frac{-13x}{13} = \frac{139}{-13}$

$x=-\frac{139}{13}$