Find the solution of this system of equations. separate the x- and y-values with a comma. x + 12y = 17 x - y = -9 enter the correct answer.

{-7,2}

Step-by-step explanation:

Given

x+12y=17     Eqn 1

x-y=-9          Eqn 2

We will use the substitution method to solve the system of equations. So, from eqn 2:

Putting the value of x in equation 1:

Putting the value of y in eqn 2:

to find the unit price, we must figure out the cost of one item (in this case one dish towel).   to do this, we divide the total price ($7.92) by the number of items bought (for this problem it is 8, because there are eight dish towels in one pack).  

$7.92/8 = $0.99

therefore, the unit price, or the price of one dish towel, is $0.99.

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