3y+8=6y+3-21

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Solution for 3y+8=6y+3-21 equation:


Simplifying
3y + 8 = 6y + 3 + -21

Reorder the terms:
8 + 3y = 6y + 3 + -21

Reorder the terms:
8 + 3y = 3 + -21 + 6y

Combine like terms: 3 + -21 = -18
8 + 3y = -18 + 6y

Solving
8 + 3y = -18 + 6y

Solving for variable 'y'.

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

Add '-6y' to each side of the equation.
8 + 3y + -6y = -18 + 6y + -6y

Combine like terms: 3y + -6y = -3y
8 + -3y = -18 + 6y + -6y

Combine like terms: 6y + -6y = 0
8 + -3y = -18 + 0
8 + -3y = -18

Add '-8' to each side of the equation.
8 + -8 + -3y = -18 + -8

Combine like terms: 8 + -8 = 0
0 + -3y = -18 + -8
-3y = -18 + -8

Combine like terms: -18 + -8 = -26
-3y = -26

Divide each side by '-3'.
y = 8.666666667

Simplifying
y = 8.666666667

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