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15 eights are 10 times more than 4 times of a number. Find this number. (solution of equations)
Let this number be x, 4x + 10 = 15 × 8 & nbsp; 4x = 120-10 & nbsp; 4x = 110 & nbsp; X = 27.5 A: this number is 27.5
Multiply a number by 10 to get 72 more than the original number. What's the original number?
72 (10-1) = 72 (9), = 8. A: the original number is 8
If a number is multiplied by 10, the number obtained is 72 larger than the original number. What is the original number? X cannot be set
A number multiplied by 10 is 72 times larger than the original,
That is to say, 10 times the number is 72 times larger than the number,
Ten times the number minus nine times the number, and the result is 72,
Nine times that number is 72
72 divided by 9 is the number
The following formula can be listed:
72 / (10-1) = 8, which turned out to be 8
Multiply a number by 10 to get 72 more than the original number. What's the original number?
72 (10-1) = 72 (9), = 8. A: the original number is 8
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