# You & your friends go to a mexican restaurant. U orders 2 tacos & 3 enchiladas & your friends orders 3 tacos & 5 enchilada! 1 bill was $7.50, & the other bill was$12.70. How much was each taco & each enchilada?

Price of each enchalida is $2.90, but each taco reduces it by $0.60.
As friend had ordered one taco and two enchalida more than me and has paid $12.70-7.50=$5.20 more, this is the price of one taco and two enchalida.
Hence doubling two tacos and four enchalida cost 2×5.20=$10.40. But two tacos and three enchalida cost $7.50$. Hence price of one enchalida is $10.40-$7.50=$2.90.
This means three enchalida cost $2.90×3=$8.70 and as total price paid by me was just $7.50, reduction in price for two tacos is $8.70-$7.50=$1.20 and price of one taco must be $-1.20÷2=$-0.60 i.e. price of each taco is reduced by $0.60. Checking it for friend fivee enchalida cost $2.90×5=$14.50 which is reduced by price of three tacos i.e. $0.60×3=$1.80 and total price is $14.50-1.80=\$12.70.