7y+21-6y+12=8

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Solution for 7y+21-6y+12=8 equation: 


Simplifying
7y + 21 + -6y + 12 = 8

Reorder the terms:
21 + 12 + 7y + -6y = 8

Combine like terms: 21 + 12 = 33
33 + 7y + -6y = 8

Combine like terms: 7y + -6y = 1y
33 + 1y = 8

Solving
33 + 1y = 8

Solving for variable 'y'.

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

Add '-33' to each side of the equation.
33 + -33 + 1y = 8 + -33

Combine like terms: 33 + -33 = 0
0 + 1y = 8 + -33
1y = 8 + -33

Combine like terms: 8 + -33 = -25
1y = -25

Divide each side by '1'.
y = -25

Simplifying
y = -25

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