Question

resolva as expressoes
a-2x+x/4=10
b-2x+1/3=x/2+5

Answer 1

a)

$2x+ \frac{x}{4} =10$

mmc = 4

$\frac{8x+x}{4} =10$

8x + x = 4.10

9x = 40

$x= \frac{40}{9}$

b)

$2x+ \frac{1}{3} = \frac{x}{2} +5$

$\frac{1}{3} - \frac{x}{2} =5-2x$

mmc = 6

$\frac{2-3x}{6} =5-2x$

2 - 3x = 6.(5 - 2x)

2 - 3x = 30 - 2

-3x + 12x = 30 - 2

9x = 28

$x= \frac{28}{9}$