exam
Maths Puzzle
Numerical Ability
x+3y=12
2x-4y=24
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exam Other Question
1.) 3x/(x+1) + 6/2x = 7/x
2.) 6x/(x+4) + 4 = 2x+2/(x-1)
3.) 7x+1/2x+5 + 1 =10x-3/3x
4.) 10/x^2-2x + 4/x = 5/x-2
Please help me!
If:
f(x) = 4-x and g(x) = 1+x^2 find (g*f)(-2)
Thanx