x(3x+6x)=25

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Solution for x(3x+6x)=25 equation: 


Simplifying
x(3x + 6x) = 25

Combine like terms: 3x + 6x = 9x
x(9x) = 25

Remove parenthesis around (9x)
x * 9x = 25

Reorder the terms for easier multiplication:
9x * x = 25

Multiply x * x
9x2 = 25

Solving
9x2 = 25

Solving for variable 'x'.

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

Divide each side by '9'.
x2 = 2.777777778

Simplifying
x2 = 2.777777778

Take the square root of each side:
x = {-1.666666667, 1.666666667}

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