8-(y+9)=-2y+12

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Solution for 8-(y+9)=-2y+12 equation:


Simplifying
8 + -1(y + 9) = -2y + 12

Reorder the terms:
8 + -1(9 + y) = -2y + 12
8 + (9 * -1 + y * -1) = -2y + 12
8 + (-9 + -1y) = -2y + 12

Combine like terms: 8 + -9 = -1
-1 + -1y = -2y + 12

Reorder the terms:
-1 + -1y = 12 + -2y

Solving
-1 + -1y = 12 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
-1 + -1y + 2y = 12 + -2y + 2y

Combine like terms: -1y + 2y = 1y
-1 + 1y = 12 + -2y + 2y

Combine like terms: -2y + 2y = 0
-1 + 1y = 12 + 0
-1 + 1y = 12

Add '1' to each side of the equation.
-1 + 1 + 1y = 12 + 1

Combine like terms: -1 + 1 = 0
0 + 1y = 12 + 1
1y = 12 + 1

Combine like terms: 12 + 1 = 13
1y = 13

Divide each side by '1'.
y = 13

Simplifying
y = 13

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