3(X-1)+5=8
3x-3+5=8
3x=8-5+3
3x=6
x=2
5X-3(X+3)=1
5x-3x-9=1
2x=1+9
2x=10
x=5
10-(X+1)=2(X+2)
10-x-1=2x+4
9-x=2x+4
9-4=2x+x
5=3x
x=5/3
2(X+1)-3(X-3)=9
2x+2-3x+9=9
-x=9-9-2
-x=-2
x=2
3(Y+2)-6=2+5(Y+2)
3Y+6-6=2+5Y+10
3Y=12+5Y
12=-3Y+5Y
12=2Y
Y=6
2(3X-1)-3(4X+3)=X-4(X-1)
6x-2-12x-9=x-4x+4
(6x-12x)+(-2-9)=-3x+4
-6x-11=-3x-4
-4-11=-3x+6x
-15=3x
x=-5
10X-4(3-X)-5(2+7X)=15X-9(X-2)
10x-12+4x-10-35x=15x-9x+18
(10x+4x-35x)+(-12-10)=6x+18
-21x-22=6x+18
-18-22=6x+21x
-42=27x
x=-42÷27
x=-42/27
行行好!把分给我吧,算得好辛苦!