21*(x^2)+9*(x^2)=1444

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Solution for 21*(x^2)+9*(x^2)=1444 equation: 


Simplifying
21(x2) + 9(x2) = 1444

Combine like terms: 21x2 + 9x2 = 30x2
30x2 = 1444

Solving
30x2 = 1444

Solving for variable 'x'.

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

Divide each side by '30'.
x2 = 48.13333333

Simplifying
x2 = 48.13333333

Take the square root of each side:
x = {-6.937819061, 6.937819061}

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