7+81x^2=88

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Solution for 7+81x^2=88 equation: 


Simplifying
7 + 81x2 = 88

Solving
7 + 81x2 = 88

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 81x2 = 88 + -7

Combine like terms: 7 + -7 = 0
0 + 81x2 = 88 + -7
81x2 = 88 + -7

Combine like terms: 88 + -7 = 81
81x2 = 81

Divide each side by '81'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}

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