exam Maths Puzzle Numerical Ability

Please help me solve this problem. I am stumped on what to do.
Thank-you!!!

15(23-4x2)3rd power divided by(3x25)

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exam Other Question

The sum of two consecutive even integers is 2 more than twice the smaller integer. I tried to set it up as follows: x = first integer, x+2 = second
x+x+2=2x=+2 but then it solves to 0=0 7 radical 6x - 12 radical 6x