Question

The sum of three times a number d and 5 is 17. What is the number

Answer 1

d=4

Explanation:

a sum of three times a number d and 6 is 17 = 3d+5=17

sum: +

three times: 3 x ?

number d : variable

and 6 : +6

is 17: =17

Solve:

3d+5=17

-5 -5

3d=12

/3 /3

d=4