Question

Solve for y:- y + 17 = 21 Thanks!

Answer 1

To solve for y we have to use the INVERSE OPERATION of addition which is subtraction Lets do it:-

y + 17 = 21
y = ?
21 - 17 = y
21 - 17 = 4
y = 4

CHECK OUR WORK:-

y + 17 = 21
y = 4
4 + 17 = ?
4 +17 = 21
We were RIGHT!!!!

So, y = 4.

Hope i helped ya!! xD

Answer 2

Y+17=21
   -17 -17
      y=4
ANSWER: 4