-4(12.5+-4.5y)-9y=-25

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Solution for -4(12.5+-4.5y)-9y=-25 equation: 


Simplifying
-4(12.5 + -4.5y) + -9y = -25
(12.5 * -4 + -4.5y * -4) + -9y = -25
(-50 + 18y) + -9y = -25

Combine like terms: 18y + -9y = 9y
-50 + 9y = -25

Solving
-50 + 9y = -25

Solving for variable 'y'.

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

Add '50' to each side of the equation.
-50 + 50 + 9y = -25 + 50

Combine like terms: -50 + 50 = 0
0 + 9y = -25 + 50
9y = -25 + 50

Combine like terms: -25 + 50 = 25
9y = 25

Divide each side by '9'.
y = 2.777777778

Simplifying
y = 2.777777778

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