Question

What's the value of y if :-

3y + 21 = 81​

Answer 1

y = 20

Explanation:

3y + 21 = 81

-21 -21 (21 cancels)

3y = 60

/3 /3 (3 cancels)

y = 20

Answer 2

y=20

Explanation:

Let's solve your equation step-by-step.

3y+21=81

Step 1: Subtract 21 from both sides.

3y+21−21=81−21

3y=60

Step 2: Divide both sides by 3.

3y/3 60/3

Answer:20