SOLUTION: Question 4221: Hi, I asked a question on this set of equations a little while ago, but was wondering, could one use Cramers Rule to solve the following .. a*4 + b*2 + c*9 + d * 7

SOLUTION: Question 4221: Hi, I asked a question on this set of equations a little while ago, but was wondering, could one use Cramers Rule to solve the following .. a4 + b2 + c9 + d 7

Question 4223: Question 4221: Hi, I asked a question on this set of equations a little while ago, but was wondering, could one use Cramers Rule to solve the following ..
a*4 + b*2 + c*9 + d * 7 = 21
a* 2 + b*5 + c*4 + d*4 = 11.5
a*6 + b*3 + c*5 + d*3 = 15.5
a * 8 + b * 4 + c * 6 + d * 6 = 22
If so, I would be most grateful if someone could show me how ... or get me started anyway :)
And could a general 'formula' be created using this rule to solve other similar sets of equations?
---------------------------------
I asked this question a little while ago and was asked if a*4 was a to the power of 4 or a times 4. Its a times 4 ... and the same applies to all the other unknowns in the equation.
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
i have sent you an explanation of Cramer's rule on the other posting of this question.

Enjoy!

Jon.

RELATED QUESTIONS
Hi, I asked a question on this set of equations a little while ago, but was wondering,... (answered by longjonsilver)

hi again i was wondering when your writing an equation in slope intercept form and your... (answered by stanbon)

I asked this a little while ago but wrote it wrong, it's to be (1/4+/12)*1/3 = (answered by Fombitz,richwmiller)

Hi, I play a game on my itouch that involes this math problem, and Ive done these... (answered by scott8148)

Hi! I was wondering if you have a triangle on the shpere what is the range of values for... (answered by stanbon)

Hi! I was wondering, I know this may be kind of elementary and seem like a stupid... (answered by Nate)

Hi I have a question on solving Trigonometric Equations This is the question I was... (answered by Alan3354)

Hi, I'm having trouble understanding this particular question about sets. Was... (answered by ikleyn)

What is the probability that the number of heads will be less than or equal to 1200 out... (answered by stanbon)