8-(2y+5)=2y+2(y+6)+9

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Solution for 8-(2y+5)=2y+2(y+6)+9 equation:


Simplifying
8 + -1(2y + 5) = 2y + 2(y + 6) + 9

Reorder the terms:
8 + -1(5 + 2y) = 2y + 2(y + 6) + 9
8 + (5 * -1 + 2y * -1) = 2y + 2(y + 6) + 9
8 + (-5 + -2y) = 2y + 2(y + 6) + 9

Combine like terms: 8 + -5 = 3
3 + -2y = 2y + 2(y + 6) + 9

Reorder the terms:
3 + -2y = 2y + 2(6 + y) + 9
3 + -2y = 2y + (6 * 2 + y * 2) + 9
3 + -2y = 2y + (12 + 2y) + 9

Reorder the terms:
3 + -2y = 12 + 9 + 2y + 2y

Combine like terms: 12 + 9 = 21
3 + -2y = 21 + 2y + 2y

Combine like terms: 2y + 2y = 4y
3 + -2y = 21 + 4y

Solving
3 + -2y = 21 + 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
3 + -2y + -4y = 21 + 4y + -4y

Combine like terms: -2y + -4y = -6y
3 + -6y = 21 + 4y + -4y

Combine like terms: 4y + -4y = 0
3 + -6y = 21 + 0
3 + -6y = 21

Add '-3' to each side of the equation.
3 + -3 + -6y = 21 + -3

Combine like terms: 3 + -3 = 0
0 + -6y = 21 + -3
-6y = 21 + -3

Combine like terms: 21 + -3 = 18
-6y = 18

Divide each side by '-6'.
y = -3

Simplifying
y = -3

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