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

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Solution for 9y-(2y+1)=4y+8 equation:


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

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

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

Combine like terms: 9y + -2y = 7y
-1 + 7y = 4y + 8

Reorder the terms:
-1 + 7y = 8 + 4y

Solving
-1 + 7y = 8 + 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.
-1 + 7y + -4y = 8 + 4y + -4y

Combine like terms: 7y + -4y = 3y
-1 + 3y = 8 + 4y + -4y

Combine like terms: 4y + -4y = 0
-1 + 3y = 8 + 0
-1 + 3y = 8

Add '1' to each side of the equation.
-1 + 1 + 3y = 8 + 1

Combine like terms: -1 + 1 = 0
0 + 3y = 8 + 1
3y = 8 + 1

Combine like terms: 8 + 1 = 9
3y = 9

Divide each side by '3'.
y = 3

Simplifying
y = 3

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