2-(y+12)=y-9

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


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

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

Combine like terms: 2 + -12 = -10
-10 + -1y = y + -9

Reorder the terms:
-10 + -1y = -9 + y

Solving
-10 + -1y = -9 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
-10 + -1y + -1y = -9 + y + -1y

Combine like terms: -1y + -1y = -2y
-10 + -2y = -9 + y + -1y

Combine like terms: y + -1y = 0
-10 + -2y = -9 + 0
-10 + -2y = -9

Add '10' to each side of the equation.
-10 + 10 + -2y = -9 + 10

Combine like terms: -10 + 10 = 0
0 + -2y = -9 + 10
-2y = -9 + 10

Combine like terms: -9 + 10 = 1
-2y = 1

Divide each side by '-2'.
y = -0.5

Simplifying
y = -0.5

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