Question

Solve the following equation and check the result: 3(x+2) -2 (x-1) = 11​

Answer 1

Answer:

equation by LU decomposition without pivoting

equation by LU decomposition without pivoting8x1 + 4x2 – x3 = 11

equation by LU decomposition without pivoting8x1 + 4x2 – x3 = 11–2x1 + 5x2 + x3 = 4

equation by LU decomposition without pivoting8x1 + 4x2 – x3 = 11–2x1 + 5x2 + x3 = 42x1 – x2 + 6x3 = 7

Answer 2

Answer:

3

Explanation:

3x+6-2x+2=11

x+8=11

x=11-8

x=3