1. 0.6y=28.8
y=28.8/0.6
y=48
2. 4.5m=7.65
m=7.65/4.5
m=1.7
3. 153+9a=36.9
9a=-116.1
a=-116.1/9
a=-12.9
4. x-5.5=21.5*3
x=64.5+5.5
x=70
1. 0.6y=28.8
y=28.8/0.6
y=48
2. 4.5m=7.65
m=7.65/4.5
m=1.7
3. 153+9a=36.9
9a=-116.1
a=-116.1/9
a=-12.9
4. x-5.5=21.5*3
x=64.5+5.5
x=70