make Unknown variable subject and find its value,

**wolfhound** · October 13th 2009, 11:01 AM

Hi could some one help me out to find the value of T(and help me rearrange)

**ramiee2010** · October 13th 2009, 11:11 AM

Originally Posted by wolfhound

Hi could some one help me out to find the value of T(and help me rearrange)

make t subject,a=-2 b=3

3at + 2(b-t)=4t + 5
3at + 2b -2t=4t +5
-4t-2t + 3at= -2b + 5
$\color{red}-6t + 3t=-2b+5/a$
{red}-3t/-3=-2b+5/a-3
t=6+5/-2-3
t=-11/5

$-4t-2t + 3at= -2b + 5$
$-6t + 3at= 5-2b$
$t(-6+3a)= 5-2b$
$t=\frac{5-2b}{-6+3a}=\frac{5-2b}{3a-6}=\frac{5-2(3)}{3(-2)-6}=\frac {1}{12}$

**wolfhound** · October 13th 2009, 11:16 AM

Originally Posted by ramiee2010

$-4t-2t + 3at= -2b + 5$
$-6t + 3at= 5-2b$
$t(-6+3a)= 5-2b$
$t=\frac{5-2b}{-6+3a}=\frac{5-2b}{3a-6}=\frac{5-2(3)}{3(-2)-6}=\frac {1}{12}$

Thanks for your quick reply friend

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