-3(-3)-4y=12

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Solution for -3(-3)-4y=12 equation: 


Simplifying
-3(-3) + -4y = 12

Multiply -3 * -3
9 + -4y = 12

Solving
9 + -4y = 12

Solving for variable 'y'.

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

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

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

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

Divide each side by '-4'.
y = -0.75

Simplifying
y = -0.75

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