7=9y-(10-8y)

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Solution for 7=9y-(10-8y) equation:


Simplifying
7 = 9y + -1(10 + -8y)
7 = 9y + (10 * -1 + -8y * -1)
7 = 9y + (-10 + 8y)

Reorder the terms:
7 = -10 + 9y + 8y

Combine like terms: 9y + 8y = 17y
7 = -10 + 17y

Solving
7 = -10 + 17y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-17y' to each side of the equation.
7 + -17y = -10 + 17y + -17y

Combine like terms: 17y + -17y = 0
7 + -17y = -10 + 0
7 + -17y = -10

Add '-7' to each side of the equation.
7 + -7 + -17y = -10 + -7

Combine like terms: 7 + -7 = 0
0 + -17y = -10 + -7
-17y = -10 + -7

Combine like terms: -10 + -7 = -17
-17y = -17

Divide each side by '-17'.
y = 1

Simplifying
y = 1

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