-y+3-4y+9+7y=

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Solution for -y+3-4y+9+7y= equation:


Simplifying
-1y + 3 + -4y + 9 + 7y = 0

Reorder the terms:
3 + 9 + -1y + -4y + 7y = 0

Combine like terms: 3 + 9 = 12
12 + -1y + -4y + 7y = 0

Combine like terms: -1y + -4y = -5y
12 + -5y + 7y = 0

Combine like terms: -5y + 7y = 2y
12 + 2y = 0

Solving
12 + 2y = 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 + 2y = 0 + -12

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

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

Divide each side by '2'.
y = -6

Simplifying
y = -6

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