-3y-9(9y+7)=5+6(5-y)

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Solution for -3y-9(9y+7)=5+6(5-y) equation:


Simplifying
-3y + -9(9y + 7) = 5 + 6(5 + -1y)

Reorder the terms:
-3y + -9(7 + 9y) = 5 + 6(5 + -1y)
-3y + (7 * -9 + 9y * -9) = 5 + 6(5 + -1y)
-3y + (-63 + -81y) = 5 + 6(5 + -1y)

Reorder the terms:
-63 + -3y + -81y = 5 + 6(5 + -1y)

Combine like terms: -3y + -81y = -84y
-63 + -84y = 5 + 6(5 + -1y)
-63 + -84y = 5 + (5 * 6 + -1y * 6)
-63 + -84y = 5 + (30 + -6y)

Combine like terms: 5 + 30 = 35
-63 + -84y = 35 + -6y

Solving
-63 + -84y = 35 + -6y

Solving for variable 'y'.

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

Add '6y' to each side of the equation.
-63 + -84y + 6y = 35 + -6y + 6y

Combine like terms: -84y + 6y = -78y
-63 + -78y = 35 + -6y + 6y

Combine like terms: -6y + 6y = 0
-63 + -78y = 35 + 0
-63 + -78y = 35

Add '63' to each side of the equation.
-63 + 63 + -78y = 35 + 63

Combine like terms: -63 + 63 = 0
0 + -78y = 35 + 63
-78y = 35 + 63

Combine like terms: 35 + 63 = 98
-78y = 98

Divide each side by '-78'.
y = -1.256410256

Simplifying
y = -1.256410256

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