(12y+-12)-21y=

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Solution for (12y+-12)-21y= equation:


Simplifying
(12y + -12) + -21y = 0

Reorder the terms:
(-12 + 12y) + -21y = 0

Remove parenthesis around (-12 + 12y)
-12 + 12y + -21y = 0

Combine like terms: 12y + -21y = -9y
-12 + -9y = 0

Solving
-12 + -9y = 0

Solving for variable 'y'.

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

Add '12' to each side of the equation.
-12 + 12 + -9y = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -9y = 0 + 12
-9y = 0 + 12

Combine like terms: 0 + 12 = 12
-9y = 12

Divide each side by '-9'.
y = -1.333333333

Simplifying
y = -1.333333333

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