Question

Karen and Kristen were in a competition to see who could walk the

farthest in a week. The expression 3x - 4 represents the total number of
miles Karen walked in x days. The expression 2x + 3 represents the total
number of miles Kristen walked in x days. Who walked the farthest if they
each walked for 7 days? Explain.

Answer 1

They each walked the same amount if you plug 7 into each of their expressions

Explanation:

Karen walked 3(7) - 4 or 17 miles

Kristen walked 2(7) + 3 or 17 miles