exam Maths Puzzle Numerical Ability

i cant even figure out how to start this problem i looked thru the whole chapter but for some reason i cant figure out how to solve this problem. the problem is 7+w-10=2w
thankyou for your help.

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Please help me solve this equation. M-1/6=M/4+1

Multiply thru by 24. 24M-4 = 6M+24. Collect terms: 18M = 28. M = 14/9. Hi,
I need help with this problem: {{{3x^3-4x=1}}. I'm unsure how to factor it because of the cube. I moved the one to the other side and tried to factor it, but found i couldnt b