Algebraic equation to how many months until he has 100,000 miles on his car?

Question

Mr. Conn's odometer on his car read 32,150 miles when he purchased it. He has put 1,150 on his car over the past month. If he continues to drive about the same amount of miles each month, how many months will it be until he has 100,000 miles on his car?

Answer 1

start miles=32,150

add rate=1,150 per month

end miles=100,000

delta=100,000 - 32150=67,850

nummonths=67,850/1150=59 months (from wen him got kar)

had kar 1 month, so 58 more months