1. Problem Solving Strategy: Write an Equation
Lesson 7-4
Additional Examples
A moving van rents for $29.95 a day plus $.12 a mile. Mr. Reynolds’s bill was $ and he drove the van 150 mi. For how many days did he have the van?
Words
number of days
• $29.95/d + $.12/mi •
150 mi
$137.80 =
Let d
= number of days Mr. Reynolds had the van.
Equation
137.80 d
• •
150 =

2. Problem Solving Strategy: Write an Equation
Lesson 7-4
Additional Examples
(continued)
d • • 150 =
29.95d + 18 =
Multiply 0.12 and 150.
29.95d + 18 – 18 = – 18
Subtract 18 from each side.
29.95d =
Simplify.
Divide each side by =
29.95d
29.95
119.80
d = 4
Simplify.
Mr. Reynolds had the van for 4 days.