SOLUTION: Solve using matrices 4x+y=12 3x+2y=2

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Question 647552: Solve using matrices
4x+y=12
3x+2y=2
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
matrix%282%2C3%2C4%2C1%2C12%2C3%2C2%2C2%29
Subtract R1-R2-> R1 (just means take R1-R2 and replace R1 with the result)
matrix%282%2C3%2C1%2C-1%2C10%2C3%2C2%2C2%29
-3R1 + R2 -> R2
matrix%282%2C3%2C1%2C-1%2C10%2C0%2C5%2C-28%29
R2/5 -> R2
matrix%282%2C3%2C1%2C-1%2C10%2C0%2C1%2C-28%2F5%29
R2+R1 -> R1
matrix%282%2C3%2C1%2C0%2C22%2F5%2C0%2C1%2C-28%2F5%29
So highlight%28x+=+22%2F5%29 ,highlight%28y+=+-28%2F5%29