SOLUTION: i need help understanding steps to do following I know the answer because I got it wrong on a test but how did they do it:answer is: 3 milks balancing equations: michael and j

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Question 920365: i need help understanding steps to do following I know the answer because I got it wrong on a test but how did they do it:answer is: 3 milks

balancing equations: michael and jessica are going shopping
there is a table with following information:
Item /cost
apple /$1
milk / $3
pizza/$6
chicken meal /$12
Jessica 's bill is $35. How many milks did he buy?
$12 + (2*$6)+(m+$3)+(2*$1) _(answer is 3 milks)________
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The description and question are not complete and therefore the question is not answerable.

Michael and Jessica went shopping; and Jessica's bill i $35, so try to account for the bill amount. Who is "he"? What is HIS purchase data? Is the price and cost data "his" or "hers"?

a, apples
m, milks,
p, pizzas
c, chicken meals
Those are FOUR variables.

1%2Aa%2B3%2Am%2B6%2Ap%2B12%2Ac=35
highlight_green%28a%2B3m%2B6p%2B12c=35%29
One equation in four unknown variables. Many whole-number solutions are possible. The plain value, "3 milks", is WRONG. The cost of that is only $9.