## anonymous one year ago a − 3b = 4 a = b − 2 What is the solution to the set of equations in the form (a, b)?

1. anonymous

(−2, −2) (−3, −1) (−9, −7) (−5, −3)

2. pooja195

Use the substituion method plug in equation 2 into equation one $\huge~\rm~ b-2 − 3b = 4$

3. pooja195

Now solve for b

4. anonymous

wait how do I solve for b

5. pooja195

Start by combining like terms

6. pooja195

b−2−3b=4 -3+1=?

7. anonymous

-2

8. pooja195

Good now we have -2b now we add 2 to both sides 4+2=?

9. anonymous

6

10. pooja195

So now we have -2b=6 Whats 6/-2 ?

11. anonymous

8

12. pooja195

?

13. anonymous

no wait u divide those right?

14. pooja195

Yes

15. pooja195

/=divide

16. anonymous

so than it would be -3

17. pooja195

Yes now we plug -3 in place of b in equation 2 a=-3-2 -3-2=?

18. anonymous

-5

19. pooja195

good so we have b=-3 a=-5 whats the answer?

20. anonymous

it would be D

21. pooja195

Good job! :D

22. anonymous

thx for the help i'll fan and metal now ^_^

23. pooja195

thanks ^.^