Question

A television and DVD player cost a total of $1257 the cost of the television is two times the cost of the DVD player find the cost of each of item

Answer 1

tv=t
dvd=d


t+d=1257

t=2d
d=d

2d+d=1257

3d=1257

divide 3 from each side

d=419

t= 2 (419)
t=838