# y=7(15+x)

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Solve `y = 7(15 + x)` for x.

Divide both sides by 7.

`y/7 = (7(15+x))/7`

`y/7 = 15 + x`

Now subtract 15 from each side.

`y/7 - 15 = 15-15 + x`

`y/7 - 15 = x`

**The solution is x = `y/7 - 15.`**

Apply the Golden Rule of Algebra: "What is done to one side must be done to the other side.

Divide both sides by 7.

`y/7=15+x`

Subtract 15 from both sides

`y/7-15=x`

Apply the symmetric property of equality.

`x=y/7-15`

y = 7( 15 + x )

To simplify this we need to first shift 7 on the left hand side,

y = 7( 15 + x )

y/7 = [7(15 + x)]/7

y/7 = 15 + x

y/7 - x = 15 + x - x subtract x from both sides

y/7 - x = 15

y/7 - x - y/7 = 15 - y/7 subtract y/7 from both sides

-x = 15 - y/7

**x = y/7 - 15 Answer.**

y=7(15+x)

divide by 7

y/7=15+x

subtract 15

x=y/7-15

distribute the 7 to the numbers in the parentheses