Question 1027988
A company places a total of 450 advertisements using radio and television. The number of radio ads is twice the number of television ads. Find the number of radio ads and the number of television ads.

I began with assigning radio to x
and assigning television     to y

x+y = 450
x=2y
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Sub for x in the 1st equation
2y + y = 450
3y = 450
y = 150
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x = 2y
x = 300