exam Maths Puzzle Numerical Ability

complete the ordered pairs so that each is a solution for the given equation.

3x+4y=12 (0, ),( ,3/4),( ,0),(8/3, )

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exam Other Question
the value in cents of q quarters m=2(x+n)


so far i did this:
m=2(x+n)
m=2x+2n
-2n -2n
---------
m-2n=2x
---- ---
2 2

m???= x

can you divide 2n by 2?