Which equation can be used to solve for the unknown number? Seven less than a number is thirteen.
On-7 = 13
O - n= 13
O n+7=13
O n+13=7

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.