: Solve for the variable x3+7=20 s.

x = (13) ^ 1/3

x is approximately 2.351334688

Step-by-step explanation:

x^3 + 7 = 20

Subtract 7 from each side

x^3 + 7-7 = 20-7

x^3 = 13

Take the cube root of each side

x^3 ^ 1/3  = (13) ^ 1/3

x = (13) ^ 1/3

x is approximately 2.351334688

x =  ∛13 = 2.35 to the nearest hundredth.

Step-by-step explanation:

x^3 + 7 = 20

x^3 + 7 - 7 = 20 - 7

x^3 = 13

x =  ∛13.

3x + 4y -25 =0 represents the amount of change sianna should recieve