exam Maths Puzzle Numerical Ability

x^2ax^4
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exam Other Question

I can not figure out how to do algebric word problems. Not one.

If 2 is added to five times a number, the result is equal to 5 more than four times the number. find the number.
Solve the system by addition.
5x - 3y = 13
4x - 3y = 11