exam Maths Puzzle Numerical Ability

Use elimination to solve:
x+3y=16
2x-y=4


How do I find what x or y is equal to?

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exam Other Question

Factor completely: 16x4 - 40x2 + 9 Find the equations for the horizontal and vertical asymptotes of the following. Type none if the function does not have an asymptote.

a) f(x)=2x+1/x-4

Answer:
Horizontal:
Vertical:

b) g(x)=3x/x^2+4