-12=16y+6-15y+21

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Solution for -12=16y+6-15y+21 equation:


Simplifying
-12 = 16y + 6 + -15y + 21

Reorder the terms:
-12 = 6 + 21 + 16y + -15y

Combine like terms: 6 + 21 = 27
-12 = 27 + 16y + -15y

Combine like terms: 16y + -15y = 1y
-12 = 27 + 1y

Solving
-12 = 27 + 1y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
-12 + -1y = 27 + 1y + -1y

Combine like terms: 1y + -1y = 0
-12 + -1y = 27 + 0
-12 + -1y = 27

Add '12' to each side of the equation.
-12 + 12 + -1y = 27 + 12

Combine like terms: -12 + 12 = 0
0 + -1y = 27 + 12
-1y = 27 + 12

Combine like terms: 27 + 12 = 39
-1y = 39

Divide each side by '-1'.
y = -39

Simplifying
y = -39

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