3(4y+5)=9y-1-y

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Solution for 3(4y+5)=9y-1-y equation:


Simplifying
3(4y + 5) = 9y + -1 + -1y

Reorder the terms:
3(5 + 4y) = 9y + -1 + -1y
(5 * 3 + 4y * 3) = 9y + -1 + -1y
(15 + 12y) = 9y + -1 + -1y

Reorder the terms:
15 + 12y = -1 + 9y + -1y

Combine like terms: 9y + -1y = 8y
15 + 12y = -1 + 8y

Solving
15 + 12y = -1 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
15 + 12y + -8y = -1 + 8y + -8y

Combine like terms: 12y + -8y = 4y
15 + 4y = -1 + 8y + -8y

Combine like terms: 8y + -8y = 0
15 + 4y = -1 + 0
15 + 4y = -1

Add '-15' to each side of the equation.
15 + -15 + 4y = -1 + -15

Combine like terms: 15 + -15 = 0
0 + 4y = -1 + -15
4y = -1 + -15

Combine like terms: -1 + -15 = -16
4y = -16

Divide each side by '4'.
y = -4

Simplifying
y = -4

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