9=4(3y+3)-8y-9

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Solution for 9=4(3y+3)-8y-9 equation:


Simplifying
9 = 4(3y + 3) + -8y + -9

Reorder the terms:
9 = 4(3 + 3y) + -8y + -9
9 = (3 * 4 + 3y * 4) + -8y + -9
9 = (12 + 12y) + -8y + -9

Reorder the terms:
9 = 12 + -9 + 12y + -8y

Combine like terms: 12 + -9 = 3
9 = 3 + 12y + -8y

Combine like terms: 12y + -8y = 4y
9 = 3 + 4y

Solving
9 = 3 + 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.
9 + -4y = 3 + 4y + -4y

Combine like terms: 4y + -4y = 0
9 + -4y = 3 + 0
9 + -4y = 3

Add '-9' to each side of the equation.
9 + -9 + -4y = 3 + -9

Combine like terms: 9 + -9 = 0
0 + -4y = 3 + -9
-4y = 3 + -9

Combine like terms: 3 + -9 = -6
-4y = -6

Divide each side by '-4'.
y = 1.5

Simplifying
y = 1.5

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