book Maths Puzzle Numerical Ability

I am sooo lost the question is this determine the correct half-plane in each case. x+y<5

Thank you so much
Brandi

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book Other Question

Find two consecutive negitive intigers whose product is 90.
Thank you Hi. I was wondering if you can list the steps of how to do this problem:

3|x-2|divided by 7 over 6 equals 36

Thanks