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Solve it by hand. eqn 5: solve 4 for x l. eqn 6: sub 5 into 3 and solve for x m. eqn 7: sub 6 into 2 and solve for x s. eqn 8: sub 7, 6, and 5 into 1. eqn 9: solve 8 for x x. find other x’s using 5, 6, and 7. [ x s x m x l x x ].
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Solve it by hand eqn 5: solve 4 for xl eqn 6: sub 5 into 3 and solve for xm eqn 7: sub 6 into 2 and solve for xs eqn 8: sub 7, 6, and 5 into 1 eqn 9: solve 8 for xx find other x’s using 5, 6, and 7 [xsxm xl xx] Section 5.1: Understanding Matrices