the sum of three consecutive numbers is 39.fin the numbers.let x be one numberlet x be one number,then x+2 and x+1 are other numbers.【三个连续的数的总和为39,求那3个数】求用解方程的方式
问题描述:
the sum of three consecutive numbers is 39.fin the numbers.let x be one number
let x be one number,
then x+2 and x+1 are other numbers.
【三个连续的数的总和为39,求那3个数】
求用解方程的方式
答
39/3 等于13 13-1等于12 13加1等于14 这三个数应该是 12 13 14
答
x+x+1+x+2=39
3x+3=39
3x=36
x=12