问题
填空题
如果X-1.8=0.9,则6X+12.53值是______.
答案
x-1.8=0.9
x-1.8+1.8=0.9+1.8,
x=2.7;
当x=2.7时,6x+12.53=28.73.
故答案为:28.73.
如果X-1.8=0.9,则6X+12.53值是______.
x-1.8=0.9
x-1.8+1.8=0.9+1.8,
x=2.7;
当x=2.7时,6x+12.53=28.73.
故答案为:28.73.