Question: USING EXCEL Solve for x 1 and x 2 and x 3 using matrix functions from the EXCEL database: x 1 +2x 2 + x

USING EXCEL

Solve for x1 and x2 and x3 using matrix functions from the EXCEL database:

x1 +2x2 + x3 + x4 = 12

x1 + 3x2 +2x3+ 2x4 = 21

2x1+ 2x2 + x3 + x4 = 13

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