Question

A +-21 = -38

help me please​

Answer 1

a = -17

Explanation:

To solve this, we need to get A alone:

A + -21 = -38

—- +21- +21

Remember, when you do something to one side, you need to do the same thing to the other side.

Now:

A = -17!

To check:

-17 + -21 = -38

Therefore, A = -17

Answer 2

A= -17

Explanation:

A +-21 = -38

+21 +21

-38+21= -17

A= -17