Question

1) Resolva e coloque o cálculo.

a) -2X/3 - X/2 + X/4 = 25


b) X+ X/3 = X/2 - 8


c) 5X - 3X/2 + 4 = X/5 + 10

Answer 1

Boa Noite !!!

a)$\frac{-2x}{3} -\frac{x}{2} +\frac{x}{4} =25$

$\frac{-8x-6x+3x}{12} =\frac{300}{12}$

-14x+3x=300

-9x=300

x=$\frac{300}{-9}$

x=-33,33...

b)$x+\frac{x}{3} =\frac{x}{2} -8$

$\frac{6x+2x}{6} =\frac{3x-48}{6}$

8x-3x=-48

5x=-48

x=$\frac{-48}{5}$

x=-9,6

c)$5x-\frac{3x}{2} +4=\frac{x}{5} +10$

$\frac{50x-15x+40}{10} =\frac{2x+100}{10}$

35x-2x=100-40

33x=60

x=$\frac{60}{33}$

x=1,81..