3r3=9

Move 9 to the left side of the equation by subtracting it from both sides.

3r3-9=0

Factor 3 out of 3r3.

3(r3)-9=0

Factor 3 out of -9.

3r3+3⋅-3=0

Factor 3 out of 3r3+3⋅-3.

3(r3-3)=0

3(r3-3)=0

Divide each term in 3(r3-3)=0 by 3.

3(r3-3)3=03

Cancel the common factor of 3.

Cancel the common factor.

3(r3-3)3=03

Divide r3-3 by 1.

r3-3=03

r3-3=03

Divide 0 by 3.

r3-3=0

r3-3=0

Add 3 to both sides of the equation.

r3=3

Take the cube root of both sides of the equation to eliminate the exponent on the left side.

r=33

The result can be shown in multiple forms.

Exact Form:

r=33

Decimal Form:

r=1.44224957…

Solve for r 3r^3=9