12y+9(2y-10)=180

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Solution for 12y+9(2y-10)=180 equation:


Simplifying
12y + 9(2y + -10) = 180

Reorder the terms:
12y + 9(-10 + 2y) = 180
12y + (-10 * 9 + 2y * 9) = 180
12y + (-90 + 18y) = 180

Reorder the terms:
-90 + 12y + 18y = 180

Combine like terms: 12y + 18y = 30y
-90 + 30y = 180

Solving
-90 + 30y = 180

Solving for variable 'y'.

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

Add '90' to each side of the equation.
-90 + 90 + 30y = 180 + 90

Combine like terms: -90 + 90 = 0
0 + 30y = 180 + 90
30y = 180 + 90

Combine like terms: 180 + 90 = 270
30y = 270

Divide each side by '30'.
y = 9

Simplifying
y = 9

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