book Maths Puzzle Numerical Ability

Please help me figure the rest of this out! I dont get algebra at all. :(
so far I have
5 (3.3x-3)=2(x-4)
16x-15=2(x-4)
16x-15=2x-8

Read Solution (Total 0)

book Other Question

3x + 3y - 6z? What is the cubic root of pi?