-81+9y+2=4(4y-5)-3

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Solution for -81+9y+2=4(4y-5)-3 equation:


Simplifying
-81 + 9y + 2 = 4(4y + -5) + -3

Reorder the terms:
-81 + 2 + 9y = 4(4y + -5) + -3

Combine like terms: -81 + 2 = -79
-79 + 9y = 4(4y + -5) + -3

Reorder the terms:
-79 + 9y = 4(-5 + 4y) + -3
-79 + 9y = (-5 * 4 + 4y * 4) + -3
-79 + 9y = (-20 + 16y) + -3

Reorder the terms:
-79 + 9y = -20 + -3 + 16y

Combine like terms: -20 + -3 = -23
-79 + 9y = -23 + 16y

Solving
-79 + 9y = -23 + 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.
-79 + 9y + -16y = -23 + 16y + -16y

Combine like terms: 9y + -16y = -7y
-79 + -7y = -23 + 16y + -16y

Combine like terms: 16y + -16y = 0
-79 + -7y = -23 + 0
-79 + -7y = -23

Add '79' to each side of the equation.
-79 + 79 + -7y = -23 + 79

Combine like terms: -79 + 79 = 0
0 + -7y = -23 + 79
-7y = -23 + 79

Combine like terms: -23 + 79 = 56
-7y = 56

Divide each side by '-7'.
y = -8

Simplifying
y = -8

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