9+3y-3=7y+15-3y

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Solution for 9+3y-3=7y+15-3y equation:


Simplifying
9 + 3y + -3 = 7y + 15 + -3y

Reorder the terms:
9 + -3 + 3y = 7y + 15 + -3y

Combine like terms: 9 + -3 = 6
6 + 3y = 7y + 15 + -3y

Reorder the terms:
6 + 3y = 15 + 7y + -3y

Combine like terms: 7y + -3y = 4y
6 + 3y = 15 + 4y

Solving
6 + 3y = 15 + 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.
6 + 3y + -4y = 15 + 4y + -4y

Combine like terms: 3y + -4y = -1y
6 + -1y = 15 + 4y + -4y

Combine like terms: 4y + -4y = 0
6 + -1y = 15 + 0
6 + -1y = 15

Add '-6' to each side of the equation.
6 + -6 + -1y = 15 + -6

Combine like terms: 6 + -6 = 0
0 + -1y = 15 + -6
-1y = 15 + -6

Combine like terms: 15 + -6 = 9
-1y = 9

Divide each side by '-1'.
y = -9

Simplifying
y = -9

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