Question

David’s cell phone company charges $0.45 for each text message plus a monthly fee of $50.00. He owes $91.40. Write and solve an equation to find the number of text messages did David have?

Answer 1

t = # of text messages
$91.50 = 0.45t + $50
Subtract 50 from both sides
$41.50 = 0.45t
divide by 0.45
92.2 = # of text messages David had