You can put this solution on YOUR website! Simplifying an expression simply means grouping the like terms together (in this example, group all of the "x" terms together and then all of the "y" terms)
1. (2x + y) + (-x - 3y)
2. Rewrite the expression:
2x + y - x - 3y
3. Group the x terms:
2x - x + y - 3y
x + y - 3y
4. Group the y terms:
x - 2y
The expression in 4. is in simplified form since there is nothing left to combine.
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