exam Maths Puzzle Numerical Ability

Hi I have a couple of problems that I would like to know how to solve.
The involve the sum of two integers with a difference. You have to find the tow integers.
I have x + y = the sum
What do I do next?

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exam Other Question

Write the sentence as an equation, using x for the unknown number. Then solve the equation.


Four times a number added to 8 times the number equals 48. Find the number.
I need help trying to solve this problem.
____3___ -__2__
12+x-x^2 x^2-9

Sure hope I did this right. This problem cam from the 10th Edition of Introductory to Algebra by Mar