Question

I need help with math -4+a=15

Answer 1

Note the equal sign. What you do to one side, you do to the other. Isolate the a.

Add 4 to both sides

a- 4 (+4) = 15 (+4)

a = 15 + 4

a = 19

19 is your answer for a

hope this helps

Answer 2

The answer is 19.

-4 + a = 15

4 + -4 + a = 15 + 4         -Add 4 to both sides

a = 19