help please! i really need help, i cant figure it out on edginuity

Answer:
Step-by-step explanation:
[tex] \sqrt[3]{5x - 4} = \sqrt[3]{7 + 8} [/tex]
[tex]5x - 4 = 7x + 8[/tex]
[tex]5x - 4 - 7x = 8[/tex]
[tex] - 2x - 4 = 8[/tex]
[tex] - 2x + = 8 + 4[/tex]
[tex] - 2x = 12[/tex]
[tex]x = - 6[/tex]