Verified Answer :

Pretty sure it's
-6=3x+2
-2. - 2
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-8=3x
divide -8รท3=2.666666
so.....
x= -2.6666
or both of them are right, just
x= -8/3. different ways to write


-2=2x^3-3
and the image above shows the answer and steps

View image brainyhouse79