Question 1020845
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7.Two fractions have denominators 3 and 4 and their sum is 1712. If the numerators are switched, the sum is 32. 

Set up a linear system and solve it using elimination to determine the two numerators. (6 marks) 
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{{{x/3}}} + {{{y/4}}} = {{{1712}}}.

{{{x/4}}} + {{{y/3}}} = {{{32}}}.


First step to solve this system is to multiply each equation by 12 to rid off the denominators. You will get the system then

4x + 3y = 12*1712,
3x + 4y = 12*32.

Please complete it yourself.
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