4x^2=-x^2+80

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Solution for 4x^2=-x^2+80 equation: 


Simplifying
4x2 = -1x2 + 80

Reorder the terms:
4x2 = 80 + -1x2

Solving
4x2 = 80 + -1x2

Solving for variable 'x'.

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

Add 'x2' to each side of the equation.
4x2 + x2 = 80 + -1x2 + x2

Combine like terms: 4x2 + x2 = 5x2
5x2 = 80 + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
5x2 = 80 + 0
5x2 = 80

Divide each side by '5'.
x2 = 16

Simplifying
x2 = 16

Take the square root of each side:
x = {-4, 4}

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