0.4-x=0.36
-x=0.36-0.4
-x=-0.04
x=0.04
y+0.03=1
y=1-0.03
y=0.97
3.6-b=1.4
-b=1.4-3.6
-b=-2.2
b=2.2
a-3.2=0.8
a=0.8+3.2
a=4
3+x=4.3
x=4.3-3
x=1.3
b+0.03=0.23
b=0.23-0.03
b=0.2
4.2-y=0.2
-y=0.2-4.2
-y=-4
y=4
1.2+c=1.21
c=1.21-1.2
c=0.01
0.5+b=2.5
b=2.5-0.5
b=2
a+0.3=0.4
a=0.4-0.3
a=0.1
b-0.07=0.9
b=0.9+0.07
b=0.97
2.9-a=0
-a=-2.9
a=2.9
c-0.3=1.7
c=1.7+0.3
c=2
a-0.6=0.8
a=0.8+0.6
a=1.4