7(y-4)-8=-4(-8y+8)-9y

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Solution for 7(y-4)-8=-4(-8y+8)-9y equation:


Simplifying
7(y + -4) + -8 = -4(-8y + 8) + -9y

Reorder the terms:
7(-4 + y) + -8 = -4(-8y + 8) + -9y
(-4 * 7 + y * 7) + -8 = -4(-8y + 8) + -9y
(-28 + 7y) + -8 = -4(-8y + 8) + -9y

Reorder the terms:
-28 + -8 + 7y = -4(-8y + 8) + -9y

Combine like terms: -28 + -8 = -36
-36 + 7y = -4(-8y + 8) + -9y

Reorder the terms:
-36 + 7y = -4(8 + -8y) + -9y
-36 + 7y = (8 * -4 + -8y * -4) + -9y
-36 + 7y = (-32 + 32y) + -9y

Combine like terms: 32y + -9y = 23y
-36 + 7y = -32 + 23y

Solving
-36 + 7y = -32 + 23y

Solving for variable 'y'.

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

Add '-23y' to each side of the equation.
-36 + 7y + -23y = -32 + 23y + -23y

Combine like terms: 7y + -23y = -16y
-36 + -16y = -32 + 23y + -23y

Combine like terms: 23y + -23y = 0
-36 + -16y = -32 + 0
-36 + -16y = -32

Add '36' to each side of the equation.
-36 + 36 + -16y = -32 + 36

Combine like terms: -36 + 36 = 0
0 + -16y = -32 + 36
-16y = -32 + 36

Combine like terms: -32 + 36 = 4
-16y = 4

Divide each side by '-16'.
y = -0.25

Simplifying
y = -0.25

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