9y-12-5y+9=0

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Solution for 9y-12-5y+9=0 equation:


Simplifying
9y + -12 + -5y + 9 = 0

Reorder the terms:
-12 + 9 + 9y + -5y = 0

Combine like terms: -12 + 9 = -3
-3 + 9y + -5y = 0

Combine like terms: 9y + -5y = 4y
-3 + 4y = 0

Solving
-3 + 4y = 0

Solving for variable 'y'.

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

Add '3' to each side of the equation.
-3 + 3 + 4y = 0 + 3

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

Combine like terms: 0 + 3 = 3
4y = 3

Divide each side by '4'.
y = 0.75

Simplifying
y = 0.75

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