matrix A = 2 a-2b+c 2a+b+c
3 5 a+c
0 -2 7
i know that a-2b+c=3 and son on ... but i cant seem to process the equation to get answers consistent for the equation.
matrix A = 2 a-2b+c 2a+b+c
3 5 a+c
0 -2 7
[ 2 a-2b+c 2a+b+c ] [ 2 3 0 ]
[ 3 5 a+c ] = [ a-2b+c 5 -2 ]
[ 0 -2 7 ] [ 2a+b+c a+c 7 ]
1a - 2b + 1c = 3
2a + 1b + 1c = 0
1a + 0b + 1c = -2
1a - 2b + 1c = 3
2a + 1b + 1c = 0
1a + 0b + 1c = -2
-R3 + R1 -> R1
- 2b = 5
2a + 1b + 1c = 0
1a + 0b + 1c = -2
1b = -2.5
2a + 1b + 1c = 0
1a + + 1c = -2
-R1 + R2 -> R2
1b = -2.5
2a + 0b + 1c = 2.5
1a + + 1c = -2
-(1/2)R2 + R3 -> R3
1b = -2.5
2a + 1c = 2.5
-(1/2)c = -3.25