The expression is: d+5
12
d + 5
2 x 3 x 5 x d x d x d x d x d = 30d5
D+5<1 -5 -5 ________ d<-4 first you put the equation then subtract 5 from each side ( because you need to get the letter d alone ) and you are left with -4 ... Since this is an inequality you put the answer as ; d<-4
Solve the inequality: 75d ÷ 5 > d + 5 → 15d > d + 5 → 14d > 5 → d > 5/14 So any value of d greater than five fourteenths is a solution Thus any value less than or equal to five fourteenths (5/14) is a solution to the question as asked.
#include<stdio.h> int main() { int a,b,c,d; for(a=1; a<5; a++) { for(b=1; b<5; b++) { for(c=1; c<5; c++) { for(d=1; d<5; d++) { if(!(a==b a==c a==d b==c b==d c==d)) printf("dd\n",a,b,c,d); } } } } return 0; }
3d + 8d - d - 5 = 10d - 5 = 5*(2d - 1)
d/3+3 = 5 d+9 = 15 d = 15-9 d = 6
d/4 - 3/5 = -1/2 d/4 = -1/2 + 3/5 d/4 = 1/10 d = 4/10 d= 2/5
If: d+7 = 5 Then: d = -2 by subtracting 7 from both sides
the 5 D's D- dodge D- duck D- dip D- dive D- and... dodge!