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\left(x+6\right)\times 3\sqrt{3}=x\times 6
Variable x cannot be equal to any of the values -6,0 since division by zero is not defined. Multiply both sides of the equation by x\left(x+6\right), the least common multiple of x,6+x.
\left(3x+18\right)\sqrt{3}=x\times 6
Use the distributive property to multiply x+6 by 3.
3x\sqrt{3}+18\sqrt{3}=x\times 6
Use the distributive property to multiply 3x+18 by \sqrt{3}.
3x\sqrt{3}+18\sqrt{3}-x\times 6=0
Subtract x\times 6 from both sides.
3x\sqrt{3}+18\sqrt{3}-6x=0
Multiply -1 and 6 to get -6.
3x\sqrt{3}-6x=-18\sqrt{3}
Subtract 18\sqrt{3} from both sides. Anything subtracted from zero gives its negation.
\left(3\sqrt{3}-6\right)x=-18\sqrt{3}
Combine all terms containing x.
\frac{\left(3\sqrt{3}-6\right)x}{3\sqrt{3}-6}=-\frac{18\sqrt{3}}{3\sqrt{3}-6}
Divide both sides by 3\sqrt{3}-6.
x=-\frac{18\sqrt{3}}{3\sqrt{3}-6}
Dividing by 3\sqrt{3}-6 undoes the multiplication by 3\sqrt{3}-6.
x=12\sqrt{3}+18
Divide -18\sqrt{3} by 3\sqrt{3}-6.