Brain Stumping Maths Brain Teaser

This is a hard maths reasoning brain teaser that will leave you stumped. This maths brain teaser is for school students. Solving these kinds of logical and mathematical brain teasers will help you to improve your logical, mathematical, and analytic abilities. This is a tough maths reasoning brain teaser that will require some good mathematical calculations. You can find the hidden mathematical formula in the given number equations that makes these equations correct. If you can able to crack the maths reasoning hidden in this brainteaser, find the value of the missing number in the last number equation.
If 2+3=9, 4+1=21, 6+3=45, 3+1=13 then 5+4=?
Can you solve this Maths Logical Brain Teaser?

The answer to this "Maths Brain Teaser", can be viewed by clicking on the answer button.

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