Question

xy=45
x+y=14
​
find the value of x and y
give full answer​

Answer 1

Answer:

simple

Step-by-step explanation:

Hello,

x+y = 14

xy = 45

Let's work on second equation by setting it to x:

x=45/y

Now substitute in in the first equation:

45/y+y=14

Multiply by y to get:

45+y^2=14y

Subtract 14y and factor:

y^2-14y+45=0

(y-9)(y-5)=0

Solve for y:

y=9

y=5

So now we know x can equal 5 or 9.