-28r^2=4r^2

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Solution for -28r^2=4r^2 equation: 


Simplifying
-28r2 = 4r2

Solving
-28r2 = 4r2

Solving for variable 'r'.

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

Add '-4r2' to each side of the equation.
-28r2 + -4r2 = 4r2 + -4r2

Combine like terms: -28r2 + -4r2 = -32r2
-32r2 = 4r2 + -4r2

Combine like terms: 4r2 + -4r2 = 0
-32r2 = 0

Divide each side by '-32'.
r2 = 0

Simplifying
r2 = 0

Take the square root of each side:
r = {0}

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