Answer:
x = ∛13 = 2.35 to the nearest hundredth.
Explanation:
x^3 + 7 = 20
x^3 + 7 - 7 = 20 - 7
x^3 = 13
x = ∛13.
x = (13) ^ 1/3
x is approximately 2.351334688
Subtract 7 from each side
x^3 + 7-7 = 20-7
Take the cube root of each side
x^3 ^ 1/3 = (13) ^ 1/3
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