연립일차방정식

For the following exercises, solve each system by any method.

$\begin{array}{c}5x+9y=16 \\ \, x+2y=4\end{array}$

For the following exercises, solve each system by any method.

$\begin{array}{c}6x-8y=-0.6 \\ 3x+2y=0.9\end{array}$

For the following exercises, solve each system by any method.

$\begin{array}{c}5x-2y=2.25 \\ 7x-4y=3\end{array}$

For the following exercises, solve each system by any method.

$\begin{array}{c}\,x-\frac{5}{12}y=-\frac{55}{12} \\ -6x+\frac{5}{2}y=\frac{55}{2}\end{array}$

For the following exercises, solve each system by any method.

$\begin{array}{c}7x-4y=\frac{7}{6} \\ 2x+4y=\frac{1}{3}\end{array}$

For the following exercises, solve each system by any method.

$\begin{array}{c}3x+6y=11 \\ 2x+4y=9\end{array}$

For the following exercises, solve each system by any method.

$\begin{array}{c}\, \frac{7}{3}x-\frac{1}{6}y=2 \\ -\frac{21}{6}x+\frac{3}{12}y=-3\end{array}$

For the following exercises, solve each system by any method.

$\begin{array}{c}\frac{1}{2}x+\frac{1}{3}y=\frac{1}{3} \\ \frac{3}{2}x+\frac{1}{4}y=-\frac{1}{8}\end{array}$

For the following exercises, solve each system by any method.

$\begin{array}{c}2.2x+1.3y=-0.1 \\ 4.2x+4.2y=2.1\end{array}$

For the following exercises, solve each system by any method.

$\begin{array}{c}0.1x+0.2y=2 \\ 0.35x-0.3y=0\end{array}$

For the following exercises, graph the system of equations and state whether the system is consistent, inconsistent, or dependent and whether the system has one solution, no solution, or infinite solutions.

$\begin{array}{c}3x-y=0.6 \\ x-2y=1.3\end{array}$

For the following exercises, graph the system of equations and state whether the system is consistent, inconsistent, or dependent and whether the system has one solution, no solution, or infinite solutions.

$\begin{array}{c} \\ -x+2y=4 \\ \,2x-4y=1\end{array}$

For the following exercises, graph the system of equations and state whether the system is consistent, inconsistent, or dependent and whether the system has one solution, no solution, or infinite solutions.

$\begin{array}{c}\,x+2y=7 \\ 2x+6y=12\end{array}$

For the following exercises, graph the system of equations and state whether the system is consistent, inconsistent, or dependent and whether the system has one solution, no solution, or infinite solutions.

$\begin{array}{c}3x-5y=7 \\ \, x-2y=3\end{array}$

For the following exercises, graph the system of equations and state whether the system is consistent, inconsistent, or dependent and whether the system has one solution, no solution, or infinite solutions.

$\begin{array}{c}\,3x-2y=5 \\ -9x+6y=-15\end{array}$

For the following exercises, use the intersect function on a graphing device to solve each system. Round all answers to the nearest hundredth.

$\begin{array}{c}\, 0.1x+0.2y=0.3 \\ -0.3x+0.5y=1\end{array}$

For the following exercises, use the intersect function on a graphing device to solve each system. Round all answers to the nearest hundredth.

$\begin{array}{c}-0.01x+0.12y=0.62 \\ \,0.15x+0.20y=0.52\end{array}$

For the following exercises, use the intersect function on a graphing device to solve each system. Round all answers to the nearest hundredth.

$\begin{array}{c}\,0.5x+0.3y=4 \\ 0.25x-0.9y=0.46\end{array}$

For the following exercises, use the intersect function on a graphing device to solve each system. Round all answers to the nearest hundredth.

$\begin{array}{c}\,0.15x+0.27y=0.39 \\ -0.34x+0.56y=1.8\end{array}$

For the following exercises, use the intersect function on a graphing device to solve each system. Round all answers to the nearest hundredth.

$\begin{array}{c} \\ -0.71x+0.92y=0.13 \\ \,0.83x+0.05y=2.1\end{array}$