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The difference between 2 times of a number and 12 is equal to the opposite number of the number
Let this number be X
2X-12=-X
2X+X=12
3X=12
X=12/3
X=4
The number is four
Two times the difference between a number and - 1 is equal to 8
Let this number be x, 2 * [x - (- 1)] = 8
x+1=4
x=3
What's five eighths more than five ninths minus one third?
5 / 9-1 / 3 + 5 / 8
=2 / 9 + 5 / 8
=16 out of 72 + 45 out of 72
=61 out of 72
RELATED INFORMATIONS
- 1. The sum of 3 / 4 + 1 / 2 is equal to 15 / 16 of a number
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- 3. One sixth of a number is exactly equal to four ninth of 36. This number is ()
- 4. 80% of 30 is equal to 2 / 3 of what
- 5. Yuanyuan wrote two numbers. The difference between the two numbers is exactly equal to the product of the two numbers. One of them is 0, 36, and the other is?
- 6. One in three is a few in 36
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- 9. Which four numbers are multiplied by 9 can have two negative numbers
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- 11. It is known that the first digit of the three digits is 8, but the last two digits don't know. There are six empty digits, which can only be selected from 1 to 6
- 12. Solve the equation 120-156x = 40
- 13. 25% of a number is 15 less than 3 / 4 of 120?
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- 19. Help me to do some multiplication formula application 1. Calculate the second power of 3000 - the second power of 2999 + the second power of 2998 - the second power of 2997 +. + the second power of 4 - the second power of 3 + the first power of 2 - the second power of 1 2. It is known that a.b.c.d are all positive numbers, and the fourth power of a + the fourth power of B + the fourth power of C + the fourth power of D = 4abcd. It is proved that a = b = C = D
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