SOLUTION: Sam makes $400 per week plus a $20 commission on each insurance policy he sells. Write and solve an equation to determine how many policies he sold to earn $680 in one week.

Question 928386: Sam makes $400 per week plus a $20 commission on each insurance policy he sells. Write and solve an equation to determine how many policies he sold to earn $680 in one week.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
y = 20x + 400
680 = 20x + 400
20x = 680 - 400
x = (680 - 400)/20
x = 14
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