Solve the following system of equations. Please show your work to receive full credit.
x - y = 13
2x + y = 2

Part 2:
Explain which method you chose to solve the system and why you felt it was the best choice.

Question

Solve the following system of equations. Please show your work to receive full credit.
x - y = 13
2x + y = 2

Part 2:
Explain which method you chose to solve the system and why you felt it was the best choice.

anonymous · Answer

hint: add bouth equations

dan815 · Answer

basically you are trying to get 1 equation with just 1 unknown so u can solve it

dan815 · Answer

the first method you always learn is just substitution, so say you arrange hte first equation x-y =13
               x-13=y no sub this y into the 2nd equation and you will have just 1 uknown

2x+y=2
2x+(x-13)=2
simplify and solve for x
2x+x-13=2
3x=15
x=5

dan815 · Answer

now from your initial relationship x-13=y
x=5 so, 5-13=y =?

anonymous · Answer

The easiest way out in this specific problem is by adding the two equation...
When you add the two equation...'y' eliminates to give the equation 3x=15 and therefor x=5!
Since the first equation is less complicated when compared to second....substitute x=3 in the first equation and  get the value of y....
That is   y=3-13=-10