Question

How do you find the value of x?DE = 5x and KC = 3x + 12

Answer 1

`\begin{gathered} DE=5x \\ KC=3x+12 \end{gathered}`

If KC and DE are congruent lines (The figure is a parallelogram) You can equal the given equations:

`\begin{gathered} DE=KC \\ \\ 5x=3x+12 \end{gathered}`

Use the equation above to solve for x:

`\begin{gathered} 5x-3x=12 \\ 2x=12 \\ x=(12)/(2) \\ \\ x=6 \end{gathered}`Then, the value of x is 6