At Ricardo's Tacos, four tacos and two orders of chips cost the same as two tacos and four orders of chips. If Ricardo's charges $2.00 for a single order of chips, how much does Ricardo's charge for 1 taco?
Let T be the cost of a single taco
We have this
4T + 2(2.00) = 2(T) + 4(2.00) simplify
4T + 4 = 2T + 8 subtract 4, 2T from both sides
2T = 4 divide both sides by 2
T = 2 → one taco costs $2