# math

posted by
**kev**
.

how would I find each sum or difference of

(5a-2b) + (-4a+5b)

what do I do with -2b when you line up the +5b?

posted by
**kev**
.

how would I find each sum or difference of

(5a-2b) + (-4a+5b)

what do I do with -2b when you line up the +5b?