编写一个程序，要求输入自变量的值，输出函数的值，例如y=3x+7

Question

如题所述

Answer 1

#include <stdio.h>
int main {
int x, y;

scanf("please input value:%d", x);
y = x * 3 + 7;
printf("result is %d\n", y);
return 0;

}