Answer:
x = 1 and y = 7
Step-by-step explanation:
First, you substitute the y into the first equation
-5x+2(7x)=9
-5x+14x=9
9x=9
x=1
Then put the x into the equation to find y
This is if you substitute using the second equation
y=7(1)
y=7
The answer should be 20, but that's not an option... hmmmm......
Domain is all real numbers
Answer:
1 hour 46 mins
Step-by-step explanation: