-80+8y+7=4(4y-4)-9

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Solution for -80+8y+7=4(4y-4)-9 equation:


Simplifying
-80 + 8y + 7 = 4(4y + -4) + -9

Reorder the terms:
-80 + 7 + 8y = 4(4y + -4) + -9

Combine like terms: -80 + 7 = -73
-73 + 8y = 4(4y + -4) + -9

Reorder the terms:
-73 + 8y = 4(-4 + 4y) + -9
-73 + 8y = (-4 * 4 + 4y * 4) + -9
-73 + 8y = (-16 + 16y) + -9

Reorder the terms:
-73 + 8y = -16 + -9 + 16y

Combine like terms: -16 + -9 = -25
-73 + 8y = -25 + 16y

Solving
-73 + 8y = -25 + 16y

Solving for variable 'y'.

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

Add '-16y' to each side of the equation.
-73 + 8y + -16y = -25 + 16y + -16y

Combine like terms: 8y + -16y = -8y
-73 + -8y = -25 + 16y + -16y

Combine like terms: 16y + -16y = 0
-73 + -8y = -25 + 0
-73 + -8y = -25

Add '73' to each side of the equation.
-73 + 73 + -8y = -25 + 73

Combine like terms: -73 + 73 = 0
0 + -8y = -25 + 73
-8y = -25 + 73

Combine like terms: -25 + 73 = 48
-8y = 48

Divide each side by '-8'.
y = -6

Simplifying
y = -6

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