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We need to isolate the dependent variable , we can do that by simultaneously subtracting $-9$ from both sides of the equation
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$x^3-9+9=0+9$
Learn how to solve equations problems step by step online. Solve the equation x^3-9=0. We need to isolate the dependent variable , we can do that by simultaneously subtracting -9 from both sides of the equation. Canceling terms on both sides. Removing the variable's exponent raising both sides of the equation to the power of \frac{1}{3}. Divide 1 by 3.