Solving Linear equations

• Apr 4th 2008, 07:34 PM
Davidxes
Solving Linear equations
5 - (2 over 7)d = 3
• Apr 4th 2008, 07:45 PM
Mathstud28
O god here we go again lol
[LaTeX ERROR: Convert failed] ....subtracting 5 from both sides you get$$\frac{-2}{7d}=-2$$...now by divding by a negative you get$$\frac{2}{7d}=2$$ multiplying by 7d you get $2=14d$...and then by dividing by 14 you get $d=1/7$
• Apr 4th 2008, 07:49 PM
Davidxes
;o wait up
it was like dis :o
2
- d
7
• Apr 4th 2008, 07:56 PM
Mathstud28
OK then
ok follow my work until we get to the $\frac{2}{7d}=2$...and rewrite it as $\frac{2d}{7}=2$ now multiply both sides by $\frac{7}{2}$ to get $d=7$
• Apr 4th 2008, 07:58 PM
Davidxes
it says the answer is 7
at the back of the boook
its not 7d : o

its

2 over 7 2 over 7 are d know wat i mean ?

2
- D
7
• Apr 4th 2008, 08:00 PM
Davidxes
yes yes yes
" ok follow my work until we get to the...and rewrite it as now multiply both sides by to get "
it works thnx : o