# Algebra 1

posted by
**Diana**
.

Find Each Sum Or Difference. Its addition.

3a+2b - 7c

-4a+6b+9c

-3a - 2b - 7c

posted by
**Diana**
.

Find Each Sum Or Difference. Its addition.

3a+2b - 7c

-4a+6b+9c

-3a - 2b - 7c