system of three equations 3 x + y + z = 14 − x +...

Gauge Terrell

Gauge Terrell

Answered

2022-07-06

system of three equations
3 x + y + z = 14
x + 2 y 3 z = 9
5 x y + 5 z = 30

Answer & Explanation

Ronald Hickman

Ronald Hickman

Expert

2022-07-07Added 18 answers

Add 3 equation 2 to equation 1. The result is a linear equation in y and z. Now add 5 equation 2 to equation 3. You get a second linear equation in y and z. Solve these and back-substitute.
Raul Walker

Raul Walker

Expert

2022-07-08Added 7 answers

This is a standard method for solving linear equations.
Transform system to its matricial form and then eliminate.
Here is your system in matricial form:
[ 3 1 1 14 1 2 3 9 5 1 5 30 ]

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