Question

What is the value of y in the equation y − 7 = 21? (4 points)

Question 1 options:

1) 7

2) 17

3) 21

4) 28

Answer 1

4) 28

Explanation:

Isolate the y

add 7 to both sides

y - 7 = 21

y - 7 (+7) = 21 (+7)

y = 21 + 7

y = 28

28 is your answer

hope this helps :D

Answer 2

4

Explanation:

y-7=21

+7 +7

y=21+7

y=28