12-3y+9+9y-12=4y+9+12y-16-12

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Solution for 12-3y+9+9y-12=4y+9+12y-16-12 equation:


Simplifying
12 + -3y + 9 + 9y + -12 = 4y + 9 + 12y + -16 + -12

Reorder the terms:
12 + 9 + -12 + -3y + 9y = 4y + 9 + 12y + -16 + -12

Combine like terms: 12 + 9 = 21
21 + -12 + -3y + 9y = 4y + 9 + 12y + -16 + -12

Combine like terms: 21 + -12 = 9
9 + -3y + 9y = 4y + 9 + 12y + -16 + -12

Combine like terms: -3y + 9y = 6y
9 + 6y = 4y + 9 + 12y + -16 + -12

Reorder the terms:
9 + 6y = 9 + -16 + -12 + 4y + 12y

Combine like terms: 9 + -16 = -7
9 + 6y = -7 + -12 + 4y + 12y

Combine like terms: -7 + -12 = -19
9 + 6y = -19 + 4y + 12y

Combine like terms: 4y + 12y = 16y
9 + 6y = -19 + 16y

Solving
9 + 6y = -19 + 16y

Solving for variable 'y'.

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

Add '-16y' to each side of the equation.
9 + 6y + -16y = -19 + 16y + -16y

Combine like terms: 6y + -16y = -10y
9 + -10y = -19 + 16y + -16y

Combine like terms: 16y + -16y = 0
9 + -10y = -19 + 0
9 + -10y = -19

Add '-9' to each side of the equation.
9 + -9 + -10y = -19 + -9

Combine like terms: 9 + -9 = 0
0 + -10y = -19 + -9
-10y = -19 + -9

Combine like terms: -19 + -9 = -28
-10y = -28

Divide each side by '-10'.
y = 2.8

Simplifying
y = 2.8

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