SOLUTION: Hi! Ive learned how to form a matrix and the problem is I have no idea what to do next when it comes to row reduction and getting to the final answer for example this question:

Algebra.Com
Question 975084: Hi!
Ive learned how to form a matrix and the problem is I have no idea what to do next when it comes to row reduction and getting to the final answer for example this question:
x+2y=12
x-3y=2 I know how to form the matrix but whats next?

Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!






















John

My calculator said it, I believe it, that settles it

RELATED QUESTIONS

I have no idea what im doing when it comes to expressions and imaginary... (answered by ikleyn)
How do you do row reduction? I have no problem using elimination to find the values of... (answered by stanbon)
how do you find the answer to x, y, and z if you have to use matrix row reduction? this (answered by scott8148)
Hi, I hope you can help me here. The following is the problem I was given and honestly do (answered by rothauserc,sanbadgerdude)
I am currently working on my masters in education and have a math class (which is not MY... (answered by scott8148)
i dont get how to do this at all. i learned once, but ive forgotten & i forgot to bring... (answered by stanbon)
In class we learned a lesson on exponential functions, and all the problems we did solved (answered by josgarithmetic)
( word prob.) Abby rows 10 km upstream and 10 km back in a total of 3 hr. the speed of... (answered by jim_thompson5910)
it says to calculate the problem and i have no idea what to do. please help! -8 - (-2) (answered by Earlsdon)