exam Maths Puzzle Numerical Ability

The difference between two numbers is 12. If 20 is added to twice the larger number the result is 4 more than 3 times the smaller number. Find the two numbers.

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exam Other Question
Given f(x) = x^2 -f if x <-1
3x+2 if x >- -1 , find f(-1) 4. Solve
x + y - z = 0
2x - y + z = 6
-x + y + z = 8
Show your answers as (x,y,z)

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