1) 4x-3(20-x)=6x-7(9-x)
4x-60+3x=6x-63+7x
(4+3-6-7)x=-63
x=1/2
2) 4(2y+3)=8(1-y)-5(y-2)
8y+12=8-8y-5y+10
21y=6
y=2/7
3)0.6(y-3/5)-2(1-y/2)=5
0.6y-0.36-2+y=5
1.6y=7.36
y=4.6=23/5
1) 4x-3(20-x)=6x-7(9-x)
4x-60+3x=6x-63+7x
(4+3-6-7)x=-63
x=1/2
2) 4(2y+3)=8(1-y)-5(y-2)
8y+12=8-8y-5y+10
21y=6
y=2/7
3)0.6(y-3/5)-2(1-y/2)=5
0.6y-0.36-2+y=5
1.6y=7.36
y=4.6=23/5