Question 1190535
x-y=3 and 2x+4y=9
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Multiply the 1st eqn by 2
2x-2y = 6
2x+4y = 9
---------------------- Subtract
-6y = -3  ..... x is eliminated
y = 1/2
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x-y=3
x - (1/2) = 3
x = 3 1/2 or 3.5