## sammy5592 3 years ago Part 1: Solve the following system of equations. Please show your work to receive full credit. x - y = 10 2x + y = 2 Part 2: Explain which method you chose to solve the system and why you felt it was the best choice.

1. hartnn

Add those two equations first and tell me what u get?

2. Mellissa

combine like terms first

3. sammy5592

3x+y=12

4. Mellissa

is that Part 2 part of the equation ?@Sammy5592

5. sammy5592

no @Mellissa

6. shaik0124

|dw:1346076054334:dw|

7. Mellissa

ok @Sammy

8. shaik0124

-3y=18 y=-6 x-(-6)=10 x+6=10 x=10-6 x=4

9. shaik0124

10. sammy5592

can u write the firsrt 1 out like that

11. hartnn

@sammy5592 how did u get 3x+y=12 u should get 3x=12 check again.

12. shaik0124

i multiplied first equation by 2 then subtracted from 2nd equation ..this gives y .put y value in any one of the equations u will get x,theefore x,y u got is solution

13. sammy5592

no i mean how you did the second equation

14. shaik0124

did u got @sammy5592

15. sammy5592

???

16. shaik0124

did u understand the solution i replied for above problem

17. sammy5592

yes

18. sammy5592

part 2 ???

19. shaik0124

it is substitution method

20. shaik0124

it is best bcoz if u find 1 value then automatically it is easy to find another value

21. sammy5592

Thanks :)