9(y-3)-6(y+3)=9

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Solution for 9(y-3)-6(y+3)=9 equation:


Simplifying
9(y + -3) + -6(y + 3) = 9

Reorder the terms:
9(-3 + y) + -6(y + 3) = 9
(-3 * 9 + y * 9) + -6(y + 3) = 9
(-27 + 9y) + -6(y + 3) = 9

Reorder the terms:
-27 + 9y + -6(3 + y) = 9
-27 + 9y + (3 * -6 + y * -6) = 9
-27 + 9y + (-18 + -6y) = 9

Reorder the terms:
-27 + -18 + 9y + -6y = 9

Combine like terms: -27 + -18 = -45
-45 + 9y + -6y = 9

Combine like terms: 9y + -6y = 3y
-45 + 3y = 9

Solving
-45 + 3y = 9

Solving for variable 'y'.

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

Add '45' to each side of the equation.
-45 + 45 + 3y = 9 + 45

Combine like terms: -45 + 45 = 0
0 + 3y = 9 + 45
3y = 9 + 45

Combine like terms: 9 + 45 = 54
3y = 54

Divide each side by '3'.
y = 18

Simplifying
y = 18

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