First we can conclude that the number is: 8,9 x x, x x x ( 7-digit number ) and the value of ten thousand digit it 1 or 2. But if value of thousand digits must be the double of the value of ten thousand digits, then the number is: 8,924, x x x ( because it can not be 8,912, x x x - that number should be 8,910,000 rounded to a ten thousand digit ). Then tens and hundreds are same and the least value. That value is zero. 8,924,00 x. Finally, we add up all values and subtract it from 24. 24 - ( 8 + 9 + 2 + 4 + 0 + 0 ) = 24 - 23 = 1 Answer: This number is 8,924,001.
You then have to subtract 125 from both sides so we can isolate our variable which will give us 15x = 120 . Divide 15 from both sides : 15x/15 = 120/15 which will give us x = 8.
