-7x^2+8=13

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Solution for -7x^2+8=13 equation:


Simplifying
-7x2 + 8 = 13

Reorder the terms:
8 + -7x2 = 13

Solving
8 + -7x2 = 13

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + -7x2 = 13 + -8

Combine like terms: 8 + -8 = 0
0 + -7x2 = 13 + -8
-7x2 = 13 + -8

Combine like terms: 13 + -8 = 5
-7x2 = 5

Divide each side by '-7'.
x2 = -0.7142857143

Simplifying
x2 = -0.7142857143

Reorder the terms:
0.7142857143 + x2 = -0.7142857143 + 0.7142857143

Combine like terms: -0.7142857143 + 0.7142857143 = 0.0000000000
0.7142857143 + x2 = 0.0000000000

The solution to this equation could not be determined.

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