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9\left(x+3\right)=x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 9x, the least common multiple of x,9.
9x+27=x
Use the distributive property to multiply 9 by x+3.
9x+27-x=0
Subtract x from both sides.
8x+27=0
Combine 9x and -x to get 8x.
8x=-27
Subtract 27 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-27}{8}
Divide both sides by 8.
x=-\frac{27}{8}
Fraction \frac{-27}{8} can be rewritten as -\frac{27}{8} by extracting the negative sign.