One half of a number is 17 more than one third of that number

题目

One half of a number is 17 more than one third of that number
One-half of a number is 17 more than one third of that number .What is that number?
A.52 B.84 C.102 D.204
答案为什么是C?

答案

One-half of a number is 17 more than one third of that number.What is that number?
1个数的二分之一比它的三分之一要多17.这个数是几?
可以设这个数为x,按条件列等式为
1/2X-1/3X=17
1/6X=17
X=102