12*y-5=9*y+7

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Solution for 12*y-5=9*y+7 equation:


Simplifying
12y + -5 = 9y + 7

Reorder the terms:
-5 + 12y = 9y + 7

Reorder the terms:
-5 + 12y = 7 + 9y

Solving
-5 + 12y = 7 + 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
-5 + 12y + -9y = 7 + 9y + -9y

Combine like terms: 12y + -9y = 3y
-5 + 3y = 7 + 9y + -9y

Combine like terms: 9y + -9y = 0
-5 + 3y = 7 + 0
-5 + 3y = 7

Add '5' to each side of the equation.
-5 + 5 + 3y = 7 + 5

Combine like terms: -5 + 5 = 0
0 + 3y = 7 + 5
3y = 7 + 5

Combine like terms: 7 + 5 = 12
3y = 12

Divide each side by '3'.
y = 4

Simplifying
y = 4

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