9(-3.2+1.2y)+9y=90

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Solution for 9(-3.2+1.2y)+9y=90 equation: 


Simplifying
9(-3.2 + 1.2y) + 9y = 90
(-3.2 * 9 + 1.2y * 9) + 9y = 90
(-28.8 + 10.8y) + 9y = 90

Combine like terms: 10.8y + 9y = 19.8y
-28.8 + 19.8y = 90

Solving
-28.8 + 19.8y = 90

Solving for variable 'y'.

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

Add '28.8' to each side of the equation.
-28.8 + 28.8 + 19.8y = 90 + 28.8

Combine like terms: -28.8 + 28.8 = 0.0
0.0 + 19.8y = 90 + 28.8
19.8y = 90 + 28.8

Combine like terms: 90 + 28.8 = 118.8
19.8y = 118.8

Divide each side by '19.8'.
y = 6

Simplifying
y = 6

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