-21-2y=-3

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Solution for -21-2y=-3 equation:


Simplifying
-21 + -2y = -3

Solving
-21 + -2y = -3

Solving for variable 'y'.

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

Add '21' to each side of the equation.
-21 + 21 + -2y = -3 + 21

Combine like terms: -21 + 21 = 0
0 + -2y = -3 + 21
-2y = -3 + 21

Combine like terms: -3 + 21 = 18
-2y = 18

Divide each side by '-2'.
y = -9

Simplifying
y = -9

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