SOLUTION: My question is find what x and y is. The equations are: x

SOLUTION: My question is find what x and y is. The equations are: x - y = 5 and x * y = 8

Question 902317: My question is find what x and y is.
The equations are:
x - y = 5
and
x * y = 8
Found 2 solutions by MathLover1, jim_thompson5910:
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

here you have system to solve; you can do it by substitution, by elimination, or by graphing
............eq.1
..........eq.2
________________________________________let's use substitution
start with ............eq.1 and solve it for
............substitute in eq.2
..........solve it for

....use quadratic formula

solutions:

or

now find
............eq.1...if

and
............eq.1...if

so, one pair of solutions is:
and
the other is
and

check:

..........eq.2..plug in and

...round to whole number

..........eq.2..plug in and

...round to whole number

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
My question is find what x and y is.
The equations are:
x - y = 5
and
x * y = 8
--------------------------------------------------------------

Solve the first equation for x

Then plug that into

Now use the quadratic formula to solve for y

Plug in , ,

or

or These are approximate

Finally, you would use these solutions to find x (plug them into ). I'll let you do this part.
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