Question

Gente me ajudem.. 
Resolver as equaçoes.
a) 10x - 8 = 3x + 6
b) 5+2 · (3y-1)=7y + 6
c) 4T - (2T - 5) = 3-4(2T+3)
d)2x-3-2+x=-15+30x
e)3(x+2)=2(x-7)+x+20

Answer 1

A-10x-3x=6+8
7x=14
x=14/7
x=2

B-5+6y-2=7y+6
6y-7y=6+2-5
-y=3 (-1)
y=-3

C--8t+20t=3-8t-12
20t=9
t=9/20

D-3x-30x=15+3
27x=18
x=18/27  (pode simplificar por 3 que vai dar 6/9)

E-3x+6=2x-14+x+20
3x-3x=20-20
0=0