book Maths Puzzle Numerical Ability

i need help with this, please: 3(2x-4)=6(x-2)

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book Other Question

Please help me with this inequality: 56<14t
thank you!
2*square root of 27 + square root of 48
can this problem be solved? I thought the radicals had to be the same. If it can be solved can you show me how??