## Dani101 Group Title How do you do y=x-v/b one year ago one year ago

1. AEB047 Group Title

for what variable?

2. Dani101 Group Title

For x

3. jim_thompson5910 Group Title

Is the equation $\Large y = \frac{x-v}{b}$ OR $\Large y = x-\frac{v}{b}$ ??

4. Dani101 Group Title

the first one

5. jim_thompson5910 Group Title

your first step is to multiply both sides by 'b'

6. jim_thompson5910 Group Title

what do you get when you do this?

7. Dani101 Group Title

But i thought you cant multiply a different variable with another

8. jim_thompson5910 Group Title

you can, there's no rule that says you can't

9. jim_thompson5910 Group Title

x times y is just xy (sure we can't find the numeric value of that, but we can just say it's xy)

10. Dani101 Group Title

Im confused, so like you multiply b by x and b by v?

11. jim_thompson5910 Group Title

you just multiply both sides by 'b' to get $\Large y = \frac{x-v}{b}$ $\Large yb = x-v$ what's next?

12. Dani101 Group Title

oh, um i really don't know, my teacher didn't really explain this to us. Don't you just leave the problem like that since you cant do anything else?

13. jim_thompson5910 Group Title

no, you can add 'v' to both sides and this completely isolates x

14. jim_thompson5910 Group Title

$\Large yb = x-v$ $\Large yb+v = x-v+v$ $\Large yb+v = x$ $\Large x = yb+v$

15. jim_thompson5910 Group Title

and now you're done

16. Dani101 Group Title

Ohhhh, Thank you very much that was helpful

17. jim_thompson5910 Group Title

yw