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What the answer to the sum of a number and 2 times the number is 21?
Wiki User
∙ 13y ago
The answer is 7.
Explanation: x+2x=21 therefore 3x=21 so it must be 7
Wiki User
∙ 13y ago
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Twice the sum of a number and 21 is equal to three times the difference of the number and5?
2*(x + 21) = 3*abs(x - 5) => x = -5.4 or x = 57.
What is the sum of of 8 times a number and 2?
8n + 2
The sum of -2 and three times a number?
3x+2
The sum of two times a number (x) and -2 is at least 8.?
i think it is if you simlify it the answer would be x+(-2)>8 your welcome aislinn
A number times the sum of that number and 8?
x(x+8)x^2 + 8x
What is the smallest whole number that is equal to seven times the sum of its digits?
21
Twice the sum of a number and 21 is equal to three times the difference of the number and5?
2*(x + 21) = 3*abs(x - 5) => x = -5.4 or x = 57.
The sum of two number is 21 and their differences is 17.what are the number?
19 and 2
The sum of 2 times a number and 5 times the number?
Let x represent the number. 2 times the number would be 2x, and 5 times the number would be 5x. The sum of the two would be 2X + 5x = 7x
There is a 2 digit number that is 2 times the sum of its digits What is this number?
Eighteen
What is the sum of of 8 times a number and 2?
8n + 2
If you multiply 2 times the sum of 2 and Me I am 10 What is My Number?
The answer is 24.
The sum of -2 and three times a number?
3x+2
Which number is 2 times the sum of its digit Is this number unique?
18. The sum of its digits is 9. And yes, it is unique.
Four times the sum of a number and 2 is 24 less than the number times 8 Find the number?
Suppose the number is x. The sum of the number and two is x+2 Four times the sum is 4(x+2) The number times 8 is 8x 24 less than the number times 8 is 8x-24 4(x+2) = 8x-24 4x+8=8x-24 so 4x = 32 and x = 8
Three times the sum of a number and twenty one is twice the number increased by 23 find the number?
3(x+21) = 2(x+23)3x+63=2x+46x=-17
The sum of two times a number (x) and -2 is at least 8.?
i think it is if you simlify it the answer would be x+(-2)>8 your welcome aislinn
