solving for X

**realistic** · September 9th 2009, 01:39 AM

can someone help with next step? plz

**Researcher** · September 9th 2009, 02:13 AM

Originally Posted by realistic

can someone help with next step? plz

y=p/(k-x)

**realistic** · September 9th 2009, 02:20 AM

back of book has a different answer

**Grandad** · September 9th 2009, 03:21 AM

Hello realistic

Originally Posted by realistic

can someone help with next step? plz

$x = k - \frac{\sqrt{pz}}{y}$

$\Rightarrow x-k=-\frac{\sqrt{pz}}{y}$

$\Rightarrow k-x=\frac{\sqrt{pz}}{y}$

$\Rightarrow (k-x)y=\sqrt{pz}$

$\Rightarrow y = \frac{\sqrt{pz}}{k-x}$

Grandad

**realistic** · September 9th 2009, 03:26 AM

Originally Posted by Grandad

Hello realistic $x = k - \frac{\sqrt{pz}}{y}$

$\Rightarrow x-k=-\frac{\sqrt{pz}}{y}$

$\Rightarrow k-x=\frac{\sqrt{pz}}{y}$

$\Rightarrow (k-x)y=\sqrt{pz}$

$\Rightarrow y = \frac{\sqrt{pz}}{k-x}$

Grandad

on step 2 how did you get the negative away ?

**Grandad** · September 9th 2009, 03:35 AM

Hello realistic

Originally Posted by realistic

on step 2 how did you get the negative away ?

Multiply both sides by $-1$ , noting that $-(x-k) = k-x$ .

Grandad

Thread: solving for X

LinkBack

Thread Tools

Display

solving for X

Similar Math Help Forum Discussions

solving for x

help solving for y

help me in solving this

Solving x'Px = v

solving definite integrals, and solving systems using the Gaussian Elimination method

Search Tags