keke6361
21.09.2019 •
Mathematics
Three consecutive natural numbers have a sum of 30.
what is the least number?
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Ответ:
It is given that, x + x+1 + x+2 = 30
3x + 3 = 30
3x = 30-3
x = 27/3
x = 9
So, the least number is 9
Hope this helps!
Ответ:
x = 15/2 or 7.5
Step-by-step explanation:
-4 (x - 1) + 6x = 2(17 - x)
First, distribute the -4 and 2, and remember that multiplying two negatives make a positive.
-4x + 4 + 6x = 34 - 2x
Combine like terms
2x + 4 = 34 - 2x
Subtract 4 from both sides
2x = 30 - 2x
Add 2x to both sides
4x = 30
Finally, divide both sides by 4
x = 15/2 or 7.5