-49+r^2=

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Solution for -49+r^2= equation: 


Simplifying
-49 + r2 = 0

Solving
-49 + r2 = 0

Solving for variable 'r'.

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

Add '49' to each side of the equation.
-49 + 49 + r2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + r2 = 0 + 49
r2 = 0 + 49

Combine like terms: 0 + 49 = 49
r2 = 49

Simplifying
r2 = 49

Take the square root of each side:
r = {-7, 7}

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