y=-2*0-21

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Solution for y=-2*0-21 equation: 


Simplifying
y = -2 * 0 + -21

Multiply -2 * 0
y = 0 + -21

Anything times zero is zero.
y = 0 + -21

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

Solving
y = -21

Solving for variable 'y'.

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

Simplifying
y = -21

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