9y-(6y+8)=9-(2y-4)

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Solution for 9y-(6y+8)=9-(2y-4) equation:


Simplifying
9y + -1(6y + 8) = 9 + -1(2y + -4)

Reorder the terms:
9y + -1(8 + 6y) = 9 + -1(2y + -4)
9y + (8 * -1 + 6y * -1) = 9 + -1(2y + -4)
9y + (-8 + -6y) = 9 + -1(2y + -4)

Reorder the terms:
-8 + 9y + -6y = 9 + -1(2y + -4)

Combine like terms: 9y + -6y = 3y
-8 + 3y = 9 + -1(2y + -4)

Reorder the terms:
-8 + 3y = 9 + -1(-4 + 2y)
-8 + 3y = 9 + (-4 * -1 + 2y * -1)
-8 + 3y = 9 + (4 + -2y)

Combine like terms: 9 + 4 = 13
-8 + 3y = 13 + -2y

Solving
-8 + 3y = 13 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
-8 + 3y + 2y = 13 + -2y + 2y

Combine like terms: 3y + 2y = 5y
-8 + 5y = 13 + -2y + 2y

Combine like terms: -2y + 2y = 0
-8 + 5y = 13 + 0
-8 + 5y = 13

Add '8' to each side of the equation.
-8 + 8 + 5y = 13 + 8

Combine like terms: -8 + 8 = 0
0 + 5y = 13 + 8
5y = 13 + 8

Combine like terms: 13 + 8 = 21
5y = 21

Divide each side by '5'.
y = 4.2

Simplifying
y = 4.2

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