sum plus added more than increased by. the sum of a number and 2 two plus a number two added to ... a number decreased by two a number ... 2) Six times the sum of a number and four. 6(x + 4). 3) Eight subtracted from two times a number. 2x - 8 ... 6) Eleven times the difference of a number and three is equal 5( x - 3) = 2x