7r^2+84=-49

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Solution for 7r^2+84=-49 equation:


Simplifying
7r2 + 84 = -49

Reorder the terms:
84 + 7r2 = -49

Solving
84 + 7r2 = -49

Solving for variable 'r'.

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

Add '-84' to each side of the equation.
84 + -84 + 7r2 = -49 + -84

Combine like terms: 84 + -84 = 0
0 + 7r2 = -49 + -84
7r2 = -49 + -84

Combine like terms: -49 + -84 = -133
7r2 = -133

Divide each side by '7'.
r2 = -19

Simplifying
r2 = -19

Reorder the terms:
19 + r2 = -19 + 19

Combine like terms: -19 + 19 = 0
19 + r2 = 0

The solution to this equation could not be determined.

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