Question

Resolva as equações
3-(3x-6)=2x+(4-x)=
4.(x-2)=4+2.(x-1)=
7x-3.(x-2)=3.(x+4)=
2.(y-2)+5.(2-y)=-3.(2y+2)=
2.(1-t)+1=3.(t-3)-2t=
5.(m+1)-3.(2m+1)=4.(5-m)=

Answer 1

3-(3x-6)=2x+(4-x)
3-3x+6=2x+4-x
-3x-2x+x=4-6-3
-5x+x=4-9
-4x=-5.(-1)
4x=5
x=5/4
4(x-2)=4+2(x-1)
4x-8=4+2x-2
4x-2x=4-2+8
2x=4+6
2x=10
x=10/2
x=5
7x-3(x-2)=3(x+4)
7x-3x+6=3x+12
7x-3x-3x=12-6
7x-6x=6
x=6
2(y-2)+5(2-y)=-3(2y+2)
2y-2+10-5y=-6y-6
2y-5y+6y=-6-10+2
-3y+6y=-16+2
3y=-14
y=-14/3
2(1-t)+1=3(t-3)-2t
2-2t+1=3t-9-2t
-2t-3t+2t=-9-1-2
3t=-12
t=-12/3
t=-4
5(m+1)-3(2m+1)=4(5-m)
5m+5-6m-3=20-4m
5m-6m+4m=20+3-5
5m-2m=20-2
3m=18
m=18/3
m=6