ok I need help here r the directions & promplems...
USEING MULTIPLICATION AND ADDITION Use linear combintions to solve the lilnear system. then check ur solution.
1.v-w= -5 2.2g-3h=0 3.x-y=0
v+2w=4 3g-2h=5 -3x-y=2
4.2a+6z=4 5.5e+4f=9 6.2p-q=2
3a-7z=6 4e+5f=9 2p+3q=22
7.9m-3n=20
3m+6n=2
2006-12-19 11:03:24 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Here's the first one. The rest are solved the same way.
v - w = -5
v + 2w = 4
Subtracting the first equation from the second to eliminate one variable we get:
(v-v) + (2w -(-w)) = 4 -(-5)
3w = 9
w = 3
Plug the value for w back into one of the equations. Let's pick the first one.
v - w = v - 3 = -5
v = -5 +3 = -2
So
v = -2
w = 3
2006-12-19 11:16:54 · answer #1 · answered by Northstar 7 · 1⤊ 0⤋
Sorry but I have a problem, I would be able to do this if I knew exactly what the process is. This is a little ahead of my level and I'm advanced in math, but it seems familar. Let me check my math book and i'll get back to you
2006-12-19 11:11:11 · answer #2 · answered by Tasha 2 · 0⤊ 0⤋
You'll have to retype this. It doesn't make a lot of sense. How many questions are there, 7?
2006-12-19 11:12:10 · answer #3 · answered by Anonymous · 0⤊ 0⤋
you spelled algebra wrong. the answer is 69.435%
2006-12-19 11:11:12 · answer #4 · answered by joe 2 · 0⤊ 1⤋
No
2006-12-19 11:05:21 · answer #5 · answered by Purpslinger 2 · 0⤊ 1⤋