6y-6=3y-21

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Solution for 6y-6=3y-21 equation:


Simplifying
6y + -6 = 3y + -21

Reorder the terms:
-6 + 6y = 3y + -21

Reorder the terms:
-6 + 6y = -21 + 3y

Solving
-6 + 6y = -21 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
-6 + 6y + -3y = -21 + 3y + -3y

Combine like terms: 6y + -3y = 3y
-6 + 3y = -21 + 3y + -3y

Combine like terms: 3y + -3y = 0
-6 + 3y = -21 + 0
-6 + 3y = -21

Add '6' to each side of the equation.
-6 + 6 + 3y = -21 + 6

Combine like terms: -6 + 6 = 0
0 + 3y = -21 + 6
3y = -21 + 6

Combine like terms: -21 + 6 = -15
3y = -15

Divide each side by '3'.
y = -5

Simplifying
y = -5

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