how to combine like and unlike terms

**Like Terms: **These are those terms that contain the same variables raised to the same power.

For example:

2x + 3y + 15 + 3x

Terms 2x and 3x are like terms so when we solve this sum we write:

2x + 3x +3y + 15

or 5x + 3y + 15

Similarly,

Terms are like terms so when we solve this sum we write:

**Unlike Terms:**These terms cannot be combined.

For example:

2x + 3y + 15z

Terms are unlike terms so we can't combine them.

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