Mei and Alberto are selling cookie dough. Mei sold 11 packages of chocolate chip and 12 packages of gingerbread for a total of $352. Alberto sold 10 packages of chocolate chip and 8 packages of gingerbread for a total of $270. What is the price of a package of chocolate chip and the price of a package of gingerbread? What is the price of chocolate chip cookie dough?

What is the price of gingerbread cookie dough?

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

answer: plz put a pic in so i can answer it

step-by-step explanation:

the answer to your question (9+10) is 19