3y+3y-12=7y-3y-30

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Solution for 3y+3y-12=7y-3y-30 equation:


Simplifying
3y + 3y + -12 = 7y + -3y + -30

Reorder the terms:
-12 + 3y + 3y = 7y + -3y + -30

Combine like terms: 3y + 3y = 6y
-12 + 6y = 7y + -3y + -30

Reorder the terms:
-12 + 6y = -30 + 7y + -3y

Combine like terms: 7y + -3y = 4y
-12 + 6y = -30 + 4y

Solving
-12 + 6y = -30 + 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.
-12 + 6y + -4y = -30 + 4y + -4y

Combine like terms: 6y + -4y = 2y
-12 + 2y = -30 + 4y + -4y

Combine like terms: 4y + -4y = 0
-12 + 2y = -30 + 0
-12 + 2y = -30

Add '12' to each side of the equation.
-12 + 12 + 2y = -30 + 12

Combine like terms: -12 + 12 = 0
0 + 2y = -30 + 12
2y = -30 + 12

Combine like terms: -30 + 12 = -18
2y = -18

Divide each side by '2'.
y = -9

Simplifying
y = -9

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