Lindsay practices the guitar 50 minutes on Saturday and 30 minutes on most weekdays. Last week she practiced 140 minutes. How many weekdays did she practice write equation in the form px+q = r to represent this problem

Let's define the variables and set up the equation.

Let \( x \) be the number of weekdays Lindsay practiced. Since she practices for 30 minutes each weekday, her total practice time on weekdays would be \( 30x \) minutes.

On Saturday, she practices for 50 minutes. So, the total practice time for the week can be represented as:

\[ 30x + 50 = 140 \]

This is in the form \( px + q = r \), where:

• \( p = 30 \)
• \( q = 50 \)
• \( r = 140 \)

Therefore, the equation is:

\[ 30x + 50 = 140 \]