-180=21y^2

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Solution for -180=21y^2 equation:


Simplifying
-180 = 21y2

Solving
-180 = 21y2

Solving for variable 'y'.

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

Add '-21y2' to each side of the equation.
-180 + -21y2 = 21y2 + -21y2

Combine like terms: 21y2 + -21y2 = 0
-180 + -21y2 = 0

Add '180' to each side of the equation.
-180 + 180 + -21y2 = 0 + 180

Combine like terms: -180 + 180 = 0
0 + -21y2 = 0 + 180
-21y2 = 0 + 180

Combine like terms: 0 + 180 = 180
-21y2 = 180

Divide each side by '-21'.
y2 = -8.571428571

Simplifying
y2 = -8.571428571

Reorder the terms:
8.571428571 + y2 = -8.571428571 + 8.571428571

Combine like terms: -8.571428571 + 8.571428571 = 0.000000000
8.571428571 + y2 = 0.000000000

The solution to this equation could not be determined.

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