book Maths Puzzle Numerical Ability

I am having trouble with this one can someone help Thank you so much!

6x – 0.37 = 5(x – 0.28)

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book Other Question
3x to the 2 power plus 7 subtract 8 plus 4x to the power 2 4(-2/3+4/3)


1000 divide (1+ 0.09/4)to the 8th power

3 to the 2nd power +1/0