Question

reduza os termos seelhantes das expressões a seguir. A 4x+8*-x= B 13 ysobre 4+5ysobre 4= C 2/5ab-1/2ab+0,3ab D 3x+8x sobre2 -5x+ xsobre2 respondam rapido

Answer 1

Oiiiiii

a)
4x+8-x=
3x=-8
..x=-8/3

b)
$\frac{13y}{4} + \frac{5y}{4} = \frac{13y+5y}{4} = \frac{18y^{:2}}{4^{:2}} = \frac{9y}{2}$

c)
$\frac{2}{5ab} - \frac{1}{2ab} + \frac{3}{10ab} = \frac{4-5+3}{10ab} = \frac{2}{10ab} = \frac{1}{5ab}$


d)
$\frac{3x+8x}{2}- \frac{5x+x}{2} =$

$\frac{11x}{2}- \frac{6x}{2} =mmc \frac{22x-12}{4} = \frac{10x^{:2}}{4^{:2}} = \frac{5x}{2}$