Question

What number is missing for the result of x=11

5x+8=?x-5

x=11

Answer 1

Given

... 5·11 + 8 = n·11 -5

Find

... n

Solution

Add 5, then divide by 11.

... 63 +5 = 11n

... 68/11 = n = 6 2/11

The missing number is 6 2/11 or 68/11.