9y-3=4y+12

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


Simplifying
9y + -3 = 4y + 12

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

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

Solving
-3 + 9y = 12 + 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
-3 + 9y + -4y = 12 + 4y + -4y

Combine like terms: 9y + -4y = 5y
-3 + 5y = 12 + 4y + -4y

Combine like terms: 4y + -4y = 0
-3 + 5y = 12 + 0
-3 + 5y = 12

Add '3' to each side of the equation.
-3 + 3 + 5y = 12 + 3

Combine like terms: -3 + 3 = 0
0 + 5y = 12 + 3
5y = 12 + 3

Combine like terms: 12 + 3 = 15
5y = 15

Divide each side by '5'.
y = 3

Simplifying
y = 3

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