Question

Classrooms on one side of the drama building are all numbered with consecutive even integers. If the first room, the room with the smallest classroom number, on this side of the building is numbered x, write an expression in x for the sum of the first five classroom numbers in a row. Then simplify this expression.

The sum of the first five classroom numbers in a row is _____.

Answer 1

so the numbers are two apart

x , x+2 , x+4 , etc.

add the 1st five

Answer 2

3x+6