(y-3)-(3y-9)=

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


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

Reorder the terms:
(-3 + y) + -1(3y + -9) = 0

Remove parenthesis around (-3 + y)
-3 + y + -1(3y + -9) = 0

Reorder the terms:
-3 + y + -1(-9 + 3y) = 0
-3 + y + (-9 * -1 + 3y * -1) = 0
-3 + y + (9 + -3y) = 0

Reorder the terms:
-3 + 9 + y + -3y = 0

Combine like terms: -3 + 9 = 6
6 + y + -3y = 0

Combine like terms: y + -3y = -2y
6 + -2y = 0

Solving
6 + -2y = 0

Solving for variable 'y'.

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

Add '-6' to each side of the equation.
6 + -6 + -2y = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -2y = 0 + -6
-2y = 0 + -6

Combine like terms: 0 + -6 = -6
-2y = -6

Divide each side by '-2'.
y = 3

Simplifying
y = 3

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