2y+8=8y+21

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Solution for 2y+8=8y+21 equation:


Simplifying
2y + 8 = 8y + 21

Reorder the terms:
8 + 2y = 8y + 21

Reorder the terms:
8 + 2y = 21 + 8y

Solving
8 + 2y = 21 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
8 + 2y + -8y = 21 + 8y + -8y

Combine like terms: 2y + -8y = -6y
8 + -6y = 21 + 8y + -8y

Combine like terms: 8y + -8y = 0
8 + -6y = 21 + 0
8 + -6y = 21

Add '-8' to each side of the equation.
8 + -8 + -6y = 21 + -8

Combine like terms: 8 + -8 = 0
0 + -6y = 21 + -8
-6y = 21 + -8

Combine like terms: 21 + -8 = 13
-6y = 13

Divide each side by '-6'.
y = -2.166666667

Simplifying
y = -2.166666667

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