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valkas [14]
3 years ago
15

What is the solution of the system of the linear equations?

Mathematics
1 answer:
____ [38]3 years ago
5 0
2x+3y-z=-16 \\
-3x+3y+z=20 \\
-x+2y+z=2 \\ \\
\hbox{the 1st and 2nd equation:} \\
2x+3y-z=-16 \\
\underline{-3x+3y+z=20} \\
2x-3x+3y+3y=20-16 \\
-x+6y=4 \\ \\
\hbox{the 1st and 3rd equation:} \\
2x+3y-z=-16 \\
\underline{-x+2y+z=2 \ \ \ } \\
2x-x+3y+2y=2-16 \\
x+5y=-14

\hbox{the two new equations:} \\
-x+6y=4 \\
\underline{x+5y=-14} \\
6y+5y=4-14 \\
11y=-10 \\
y=-\frac{10}{11} \\ \\
x+5y=-14 \\
x+5 \times (-\frac{10}{11})=-14 \\
x-\frac{50}{11}=-\frac{154}{11} \\
x=-\frac{104}{11} \\
x=-9 \frac{5}{11}

-x+2y+z=2 \\
-(-\frac{104}{11})+2 \times (-\frac{10}{11})+z=2 \\
\frac{104}{11}-\frac{20}{11}+z=\frac{22}{11} \\
\frac{84}{11}+z=\frac{22}{11} \\
z=-\frac{62}{11} \\
z=-5 \frac{7}{11} \\ \\
\boxed{x=-9 \frac{5}{11}, y=-\frac{10}{11}, z=-5 \frac{7}{11}}
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Answer:

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Answer:

Explicit Function:

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Step-by-step explanation:

What is meant by implicit function?

An implicit function is a function that is defined by an implicit equation. That means the equation contains several variables, including dependent and independent. In other words, it is an equation that relates one of the variables, recognized as the value of the function, with the others regarded as the arguments.

What is an explicit function?

An explicit function is a function that is represented in terms of an independent variable. For example, y = 4x – 7 is explicit where y is a dependent variable and is dependent on the independent variable x.

How do you know if a function is implicit?

If a function is written in the form f(x, y) = 0, we can say that the given function is implicit.

What is implicit function differentiation?

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