Dani101
How do you do
y=xv/b



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AEB047
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for what variable?

Dani101
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For x

jim_thompson5910
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Is the equation
\[\Large y = \frac{xv}{b}\]
OR
\[\Large y = x\frac{v}{b}\]
??

Dani101
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the first one

jim_thompson5910
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your first step is to multiply both sides by 'b'

jim_thompson5910
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what do you get when you do this?

Dani101
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But i thought you cant multiply a different variable with another

jim_thompson5910
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you can, there's no rule that says you can't

jim_thompson5910
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x times y is just xy (sure we can't find the numeric value of that, but we can just say it's xy)

Dani101
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Im confused, so like you multiply b by x and b by v?

jim_thompson5910
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you just multiply both sides by 'b' to get
\[\Large y = \frac{xv}{b}\]
\[\Large yb = xv\]
what's next?

Dani101
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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?

jim_thompson5910
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no, you can add 'v' to both sides and this completely isolates x

jim_thompson5910
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\[\Large yb = xv\]
\[\Large yb+v = xv+v\]
\[\Large yb+v = x\]
\[\Large x = yb+v\]

jim_thompson5910
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and now you're done

Dani101
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Ohhhh, Thank you very much that was helpful
