Question

asked 2020-10-23

(1,2)

\(\left\{\begin{matrix} 3x−y=1 \\ 2x+3y=8 \end{matrix}\right\}\)

asked 2021-02-23

Solve the given set of equations for value of x:

x-3z=-5

2x-y+2z=16

7x-3y-5z=19

x-3z=-5

2x-y+2z=16

7x-3y-5z=19

asked 2021-03-12

(5,3)

\(x-y=2\)

\(x+y=8\)

asked 2021-01-05

\(25W+15X+5Y-5Z=6\)

\(15W+10X+Y-8Z=1\)

\(5W+X+30Y+54Z=3\)

\(-5W-8X+54Y+276Z=-2\)

asked 2021-03-28

Find all the solutions of the system of equations:

x+2y-z=0, 2x+y+z=0, x-4y+5z=0.

x+2y-z=0, 2x+y+z=0, x-4y+5z=0.

asked 2020-10-23

Determine if (1,3) is a solution to the given system of linear equations.

\(5x+y=8\)

\(x+2y=5\)

asked 2021-03-05

\(3x+7y-20z=-4\)

\(5x+12y-34z=-7\)

asked 2021-03-15

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

\(\displaystyle{b}{e}{g}\in{\left\lbrace{c}{a}{s}{e}{s}\right\rbrace}{x}&-{y}&+{5}{z}&={26}\backslash&\ \ \ {y}&+{2}{z}&={1}\backslash&&\ \ \ \ \ {z}&={6}{e}{n}{d}{\left\lbrace{c}{a}{s}{e}{s}\right\rbrace}\)

(x,y,z)=()

\(\displaystyle{b}{e}{g}\in{\left\lbrace{c}{a}{s}{e}{s}\right\rbrace}{x}&-{y}&+{5}{z}&={26}\backslash&\ \ \ {y}&+{2}{z}&={1}\backslash&&\ \ \ \ \ {z}&={6}{e}{n}{d}{\left\lbrace{c}{a}{s}{e}{s}\right\rbrace}\)

(x,y,z)=()

asked 2021-03-04

Form (a) the coefficient matrix and (b) the augmented matrix for the system of linear equations.

\(\displaystyle{\left\lbrace\begin{matrix}{x}+{y}={0}\\{5}{x}-{2}{y}-{2}{z}={12}\\{2}{x}+{4}{y}+{z}={5}\end{matrix}\right.}\)

\(\displaystyle{\left\lbrace\begin{matrix}{x}+{y}={0}\\{5}{x}-{2}{y}-{2}{z}={12}\\{2}{x}+{4}{y}+{z}={5}\end{matrix}\right.}\)

asked 2020-11-10

Form (a) the coefficient matrix and (b) the augmented matrix for the system of linear equations.
\(\begin{cases}8x+3y=25 \\ 3x-9y=12 \end{cases}\)