Question

Solve for y: 15 = y – 7

Answer 1

Some number y has 7 subtracted off to get 15. We have y-7 = 15. To isolate y, we have to undo the "subtract 7" operation that happens to y. We have to add 7 to both sides.

y-7 = 15

y-7+7 = 15+7

y = 22 is the answer

Answer 2

Hello!

Solve for y.

$15 = y - 7$

Explanation:

↓↓↓↓↓↓↓↓↓↓↓↓↓↓

First you had to switch sides.

$y-7=15$

Then you add by 7 from both sides of the equation.

$y-7+7=15+7$

Simplify it should be the correct answer.

$y=22$

Answer⇒⇒⇒⇒⇒y=22

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