book Maths Puzzle Numerical Ability

I need help finding the answer for 3X=-2Y+13 and 2X+5Y=16 using elimination.
I don't know how to convert it so I can use elimination on the problem.

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RE: BODMAS!!!

I have been given the numbers 3,3,5,7 and asked to use BODMAS to come to the answer 24. I have tried and tried but can not get the answer 24. Can anyone help me?? write the equation in standard form:

(2-3x)/y = 5

This is what I came up with:

y = 5(2-3x)

y = 10 - 15x

Any help would be great. Thank you!