Question

Asked Apr 20, 2019

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5.3_7 Can you please help with a step by step guide? Thank you in advance.

Use back-substitution to solve the system of linear equations.

x | − | 2y | + | z | = | 7 |

y | + | z | = | 5 | ||

z | = | 2 |

(x,y,z) = ( ? )

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Step 1

Given system of linear equations is,

Step 2

By substituting equation (3) in equation (2), we get

Step 3

Now substituting y = 3 and z = 2...

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