The cost of 2 televisions and 3 dvd player is $1,421. The cost of 1 dvd player is half the cost of 1 television. What is the cost of 1 televison.
2t + 3d = 1421
d = t/2
so,
2t + 3t/2 = 1421
7t/2 = 1421
t = 406
d = t/2
so,
2t + 3t/2 = 1421
7t/2 = 1421
t = 406