<human>:  In 7 days, Sofie will walk twice as far as Brian. If Sofie plans to walk 10 miles every day, how many miles will Brian walk in seven days?
<bot>: How many miles will Sofie walk in 7 days? ** If Sofie walks 10 miles each day, she will walk 7*10 = <<10*7=70>>70 miles in seven days.
How many miles will Brian walk in 7 days? ** Since Sofie is walking twice as far as Brian, Brian will walk 70/2 = <<70/2=35>>35 miles in seven days.
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