h-cost one hod dogs
s-cost one soda
2h + s = $3.25
3h+s = $4.50
(3h + s) - (2h + s) = 3h + s - 2h - s = h
h = $4.50 - $3.25 = $1.25
subtitute to 2h + s = $3.25
2($1.25) + s = $3.25
$2.50 + s = $3.25 |subtract $2.50 from both sides
s = $0.75
Cost of two sodas:
2s = 2($0.75) = $1.50
