9(3y-8)-(9y+7)=

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Solution for 9(3y-8)-(9y+7)= equation:


Simplifying
9(3y + -8) + -1(9y + 7) = 0

Reorder the terms:
9(-8 + 3y) + -1(9y + 7) = 0
(-8 * 9 + 3y * 9) + -1(9y + 7) = 0
(-72 + 27y) + -1(9y + 7) = 0

Reorder the terms:
-72 + 27y + -1(7 + 9y) = 0
-72 + 27y + (7 * -1 + 9y * -1) = 0
-72 + 27y + (-7 + -9y) = 0

Reorder the terms:
-72 + -7 + 27y + -9y = 0

Combine like terms: -72 + -7 = -79
-79 + 27y + -9y = 0

Combine like terms: 27y + -9y = 18y
-79 + 18y = 0

Solving
-79 + 18y = 0

Solving for variable 'y'.

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

Add '79' to each side of the equation.
-79 + 79 + 18y = 0 + 79

Combine like terms: -79 + 79 = 0
0 + 18y = 0 + 79
18y = 0 + 79

Combine like terms: 0 + 79 = 79
18y = 79

Divide each side by '18'.
y = 4.388888889

Simplifying
y = 4.388888889

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