10(y-12)+10y=9(1+7y)

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Solution for 10(y-12)+10y=9(1+7y) equation:


Simplifying
10(y + -12) + 10y = 9(1 + 7y)

Reorder the terms:
10(-12 + y) + 10y = 9(1 + 7y)
(-12 * 10 + y * 10) + 10y = 9(1 + 7y)
(-120 + 10y) + 10y = 9(1 + 7y)

Combine like terms: 10y + 10y = 20y
-120 + 20y = 9(1 + 7y)
-120 + 20y = (1 * 9 + 7y * 9)
-120 + 20y = (9 + 63y)

Solving
-120 + 20y = 9 + 63y

Solving for variable 'y'.

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

Add '-63y' to each side of the equation.
-120 + 20y + -63y = 9 + 63y + -63y

Combine like terms: 20y + -63y = -43y
-120 + -43y = 9 + 63y + -63y

Combine like terms: 63y + -63y = 0
-120 + -43y = 9 + 0
-120 + -43y = 9

Add '120' to each side of the equation.
-120 + 120 + -43y = 9 + 120

Combine like terms: -120 + 120 = 0
0 + -43y = 9 + 120
-43y = 9 + 120

Combine like terms: 9 + 120 = 129
-43y = 129

Divide each side by '-43'.
y = -3

Simplifying
y = -3

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