Let;
The number of TV shows = x
The number of movies = y
It is given that;
The number of movies is 4 less than 3 times the number of television shows.
`y = 3x-4`
If you rearrange this;
`y-3x = -4` -----(1)
Also we know...
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Let;
The number of TV shows = x
The number of movies = y
It is given that;
The number of movies is 4 less than 3 times the number of television shows.
`y = 3x-4`
If you rearrange this;
`y-3x = -4` -----(1)
Also we know that;
`x+y = 40 ` ----(2)
(2)-(1)
`4x = 44`
` x = 11`
From (2);
`y = 40-11 = 29`
The number of TV shows = 11
The number of movies = 29