You can always double check for yourself to make sure. Lets get started.
What we know:. Need to find out:
X + Y = $115. Value to X
X have $45 more than Y. Value to Y
X+Y=115
So we subtract the total from the 45 to find out X
115 70(X)+ 45(Y)=115(T)
- 45
________.
70= X.