(6+2)y+2+7=13y-21

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Solution for (6+2)y+2+7=13y-21 equation: 


Simplifying
(6 + 2) * y + 2 + 7 = 13y + -21

Combine like terms: 6 + 2 = 8
(8) * y + 2 + 7 = 13y + -21

Reorder the terms:
2 + 7 + 8y = 13y + -21

Combine like terms: 2 + 7 = 9
9 + 8y = 13y + -21

Reorder the terms:
9 + 8y = -21 + 13y

Solving
9 + 8y = -21 + 13y

Solving for variable 'y'.

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

Add '-13y' to each side of the equation.
9 + 8y + -13y = -21 + 13y + -13y

Combine like terms: 8y + -13y = -5y
9 + -5y = -21 + 13y + -13y

Combine like terms: 13y + -13y = 0
9 + -5y = -21 + 0
9 + -5y = -21

Add '-9' to each side of the equation.
9 + -9 + -5y = -21 + -9

Combine like terms: 9 + -9 = 0
0 + -5y = -21 + -9
-5y = -21 + -9

Combine like terms: -21 + -9 = -30
-5y = -30

Divide each side by '-5'.
y = 6

Simplifying
y = 6

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