5-21=2y

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Solution for 5-21=2y equation:


Simplifying
5 + -21 = 2y

Combine like terms: 5 + -21 = -16
-16 = 2y

Solving
-16 = 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
-16 + -2y = 2y + -2y

Combine like terms: 2y + -2y = 0
-16 + -2y = 0

Add '16' to each side of the equation.
-16 + 16 + -2y = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -2y = 0 + 16
-2y = 0 + 16

Combine like terms: 0 + 16 = 16
-2y = 16

Divide each side by '-2'.
y = -8

Simplifying
y = -8

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