x-y |
y |
3 |
4 |
x |
y |
7 |
4 |
7 |
4 |
a |
b |
2 |
3 |
a |
a+b |
2 |
5 |
2 |
5 |
a |
b |
4 |
3 |
a-b |
b |
1 |
3 |
1 |
3 |
a |
b |
c |
d |
e |
f |
g |
h |
a+c+e+g |
b+d+f+h |
m |
n |
2 |
3 |
m+n |
n |
5 |
3 |
5 |
3 |
a+b |
b |
5 |
2 |
a |
b |
2 |
3 |
2 |
3 |
2 |
a |
3 |
b |
4 |
c |
a+b+c |
a-b+c |
1 |
3 |
1 |
3 |
a |
b |
5 |
3 |
5 |
3 |
x |
3 |
y |
4 |
8 |
5 |
84 |
5 |
84 |
5 |
a |
2 |
b |
3 |
c |
4 |
b-a |
c |
1 |
4 |
1 |
4 |
a |
b |
c |
d |
2 |
3 |
2a-3c+4 |
2b-3d+6 |
2 |
3 |
2 |
3 |