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

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


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

Reorder the terms:
-9(-7 + -5y) = 3(5y + -9)
(-7 * -9 + -5y * -9) = 3(5y + -9)
(63 + 45y) = 3(5y + -9)

Reorder the terms:
63 + 45y = 3(-9 + 5y)
63 + 45y = (-9 * 3 + 5y * 3)
63 + 45y = (-27 + 15y)

Solving
63 + 45y = -27 + 15y

Solving for variable 'y'.

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

Add '-15y' to each side of the equation.
63 + 45y + -15y = -27 + 15y + -15y

Combine like terms: 45y + -15y = 30y
63 + 30y = -27 + 15y + -15y

Combine like terms: 15y + -15y = 0
63 + 30y = -27 + 0
63 + 30y = -27

Add '-63' to each side of the equation.
63 + -63 + 30y = -27 + -63

Combine like terms: 63 + -63 = 0
0 + 30y = -27 + -63
30y = -27 + -63

Combine like terms: -27 + -63 = -90
30y = -90

Divide each side by '30'.
y = -3

Simplifying
y = -3

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