8y-3=12y+21

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Solution for 8y-3=12y+21 equation:


Simplifying
8y + -3 = 12y + 21

Reorder the terms:
-3 + 8y = 12y + 21

Reorder the terms:
-3 + 8y = 21 + 12y

Solving
-3 + 8y = 21 + 12y

Solving for variable 'y'.

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

Add '-12y' to each side of the equation.
-3 + 8y + -12y = 21 + 12y + -12y

Combine like terms: 8y + -12y = -4y
-3 + -4y = 21 + 12y + -12y

Combine like terms: 12y + -12y = 0
-3 + -4y = 21 + 0
-3 + -4y = 21

Add '3' to each side of the equation.
-3 + 3 + -4y = 21 + 3

Combine like terms: -3 + 3 = 0
0 + -4y = 21 + 3
-4y = 21 + 3

Combine like terms: 21 + 3 = 24
-4y = 24

Divide each side by '-4'.
y = -6

Simplifying
y = -6

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