Question

Resolva as equaçoes abaixo.
a) 5+3y= -1 + 4y

b) 3-2x=17-4x

c) 1040-t=729 -3t

d) 1/2 (x-2) +1/3 (x+4) =0

Answer 1

a)3y-4y= -1-5
-y= -6
y=6

b)-2x+4x= 17-3
2x= 14
x= 14/2=7

c)1040-729= -3t+t
311=-2t
t= -311/2

d)x-2/2+x+4/3=0
3(x-2)+2.(x+4)=0
3x-6+2x+8=0
5x+2=0
5x=-2
x=-2/5