9(20-4y)+4y=-12

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Solution for 9(20-4y)+4y=-12 equation:


Simplifying
9(20 + -4y) + 4y = -12
(20 * 9 + -4y * 9) + 4y = -12
(180 + -36y) + 4y = -12

Combine like terms: -36y + 4y = -32y
180 + -32y = -12

Solving
180 + -32y = -12

Solving for variable 'y'.

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

Add '-180' to each side of the equation.
180 + -180 + -32y = -12 + -180

Combine like terms: 180 + -180 = 0
0 + -32y = -12 + -180
-32y = -12 + -180

Combine like terms: -12 + -180 = -192
-32y = -192

Divide each side by '-32'.
y = 6

Simplifying
y = 6

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