exam Maths Puzzle Numerical Ability

please help to solve

x + 3y = 7
xy = 2

Read Solution (Total 1)

x+3*2/x=7
x^2+6=7x
x^ -7x+6=0
x^-6x-1x+6=0
(x-1)(x-6)
x=6,1
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x+2/3=8/15 write the point slope of a line that passes through (0,5) and (5,1)