math word problem

Question

if the cost of 3 muffins and 1 qaurt of milk is 7.50 dollars what is the price of 1 qaurt of milk

Answer 1

3m + q =7.5

quart of milk costs $7.50 minus cost of 3 muffins

q = 7.5-3m

if m=$2

then q =7.5-3(2)= $1.50