Question

Solve 15 + a = 31 for a

Answer 1

16

Explanation:

`15 + a = 31`

Move constant to R.H.S and change its sign

`a = 31 - 15`

Subtract the numbers

`a = 16`

Hope this helps..

Best regards!!

Answer 2

a = 16

Explanation:

To solve your question all you have to do is subtract 15 on both sides so,

15 - 15 + a = 31 - 15

Which will give you,

15 - 15 = 0

31 - 15 = 16

So,

a = 16

Hope this helps!!