7-7(y+2)=8-9y

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Solution for 7-7(y+2)=8-9y equation:


Simplifying
7 + -7(y + 2) = 8 + -9y

Reorder the terms:
7 + -7(2 + y) = 8 + -9y
7 + (2 * -7 + y * -7) = 8 + -9y
7 + (-14 + -7y) = 8 + -9y

Combine like terms: 7 + -14 = -7
-7 + -7y = 8 + -9y

Solving
-7 + -7y = 8 + -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
-7 + -7y + 9y = 8 + -9y + 9y

Combine like terms: -7y + 9y = 2y
-7 + 2y = 8 + -9y + 9y

Combine like terms: -9y + 9y = 0
-7 + 2y = 8 + 0
-7 + 2y = 8

Add '7' to each side of the equation.
-7 + 7 + 2y = 8 + 7

Combine like terms: -7 + 7 = 0
0 + 2y = 8 + 7
2y = 8 + 7

Combine like terms: 8 + 7 = 15
2y = 15

Divide each side by '2'.
y = 7.5

Simplifying
y = 7.5

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