(3x^2)+(x^2)=100

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Solution for (3x^2)+(x^2)=100 equation: 


Simplifying
(3x2) + (x2) = 100
(3x2) + x2 = 100

Combine like terms: (3x2) + x2 = 4x2
4x2 = 100

Solving
4x2 = 100

Solving for variable 'x'.

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

Divide each side by '4'.
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5}

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