x^2+76=400

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Solution for x^2+76=400 equation: 


Simplifying
x2 + 76 = 400

Reorder the terms:
76 + x2 = 400

Solving
76 + x2 = 400

Solving for variable 'x'.

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

Add '-76' to each side of the equation.
76 + -76 + x2 = 400 + -76

Combine like terms: 76 + -76 = 0
0 + x2 = 400 + -76
x2 = 400 + -76

Combine like terms: 400 + -76 = 324
x2 = 324

Simplifying
x2 = 324

Take the square root of each side:
x = {-18, 18}

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