## AmTran_Bus one year ago Help combine equations!! urgent!

1. AmTran_Bus

|dw:1440812074262:dw|

2. AmTran_Bus

|dw:1440812141980:dw|

3. AmTran_Bus

How?

4. anonymous

Are you trying to solve for both $$C_1$$ and $$C_2$$?

5. AmTran_Bus

Yes

6. anonymous

Well. The first step is to rearrange the equation get one variable by itself. I can show the first one: $-1=C_1+C_2$$C_1=-1-C_2$Can you do for the other equation?

7. AmTran_Bus

Well, isn't the other one already in terms of c1?

8. anonymous

Exactly. Now, can you susbtitue them together?

9. marigirl

$-1=c _{1}+c _{2}$ $c _{1}=\frac{ -3c _{2} }{ 2 }$ now we have $-1= \frac{ -3c _{2} }{ 2 }+c _{2}$ now solve for c2 made both terms on right with same denominator $-2= \frac{ -3c _{2} }{ 2 } + \frac{ 2c }{ 2 }$

10. AmTran_Bus

|dw:1440812432810:dw|

11. AmTran_Bus

nice thanks @marigirl

12. anonymous

Now, you can substitute them together as: $-1-C_2=\frac{-3\times C_2}{2}$

13. AmTran_Bus

Just like marigirl :)

14. anonymous

Yup :)

15. AmTran_Bus

Actually im confused again can one of you show me the rest?

16. AmTran_Bus

@Ahsome