SOLUTION: 0.60x+$2y=$200 x+y=172 Please explain your steps. I don't know how to solve systems of linear equations, so please explain for whatever method you chose.

Question 1013130: 0.60x+$2y=$200
x+y=172
Please explain your steps. I don't know how to solve systems of linear equations, so please explain for whatever method you chose.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
First, you should try to simplify the money equation if possible to have whole number or integer coefficients.

Simply multiply left and right members by 5 to clear the denominator.

This means your system of equations is .
(You probably took a less than ideal example, but no matter - it can still be used).

Do you understand how to begin solving the system using Substitution?
Solve either equation for one variable in terms of the other, and substitute into the other equation; and solve that for the single variable...

More than one way to start, but try to do what seems easier.

-----unreduced but you use in whatever way you want or need.

Now, what is y?

...whatever the final form or value may be.
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