For what value of $c,$ the linear equation $2x+cy=8$ has equal values of $x$ and $y$ for its solution?

Show that the points $\mathrm{A}(1,2),\mathrm{B}(-1,-16)$ and $\mathrm{C}(0,-7)$ lie on the graph of the linear equation $y=9x-7$.

The following observed values of $x$ and $y$ are thought to satisfy a linear equation.

Write the linear equation.

Draw the graph using the values of $x, y$ given in the above table. At what points, the graph of the linear equation cuts the $x$ -axis and the $y$- axis?

The following observed values of $x$ and $y$ are thought to satisfy a linear equation.

Draw the graph using the values of $x, y$ given in the above table. At what points, the graph of the linear equation cuts the $x$ -axis and the $y$- axis?

The linear equation that converts Fahrenheit $\left(F\right)$ to Celsius $\left({}^{\circ }\mathrm{C}\right)$ is given by the relation:

$C=\frac{5F-160}{9}$

If the temperature is $86°\mathrm{F}$, what is the temperature in Celsius?

The linear equation that converts Fahrenheit $\left(F\right)$ to Celsius $\left({}^{\circ }\mathrm{C}\right)$ is given by the relation:

$C=\frac{5F-160}{9}$

If the temperature is $35°\mathrm{C},$ what is the temperature in Fahrenheit?

The linear equation that converts Fahrenheit $\left(F\right)$ to Celsius $\left({}^{\circ }\mathrm{C}\right)$ is given by the relation:

$C=\frac{5F-160}{9}$

If the temperature is $0°\mathrm{C},$ what is the temperature in Fahrenheit and if the temperature is $0°\mathrm{F}$, what is the temperature in Celsius?