Question

1 added to three times a certain number, the sum
is 13. Find the number​

Answer 1

Answer:

so ,let the number be x

1x+1x+1x = 13

3x= 13

x=10

10 is our appropriate answer hope helps

Answer 2

Answer:

The trick is untangling all of the information, but when we do, we get the following:

2(3 + 3x) = 13 + 5x

Now it's just a matter of isolating x:

6 + 6x = 13 + 5x

6 + x = 13

x = 7

Let's check our answer:

2(3 + 3*7) = 13 + 5 * 7

2(3 + 21) = 13 + 35

2 * 24 = 48

48 = 48