Which value is the solution of \sqrt[3]{3x} + 7 = 4 A.-9 B.-1 C.3 D.19​

Question

Which value is the solution of


`\sqrt[3]{3x} + 7 = 4`


A.-9
B.-1
C.3
D.19​

Answer 1

A

Explanation:

`\sqrt[3]{3x}` + 7 = 4 ( subtract 7 from both sides )

`\sqrt[3]{3x}` = - 3 ( cube both sides to clear the radical )

3x = (- 3)³ = - 27 ( divide both sides by 3 )

x = - 9