The number is 7.
10: 3n = 2(n + 5); 3n = 2n + 10; (subtract 2n from each side) n = 10.
The sum of the sum and difference gives twice the larger number 14 + 4 = 18 → the larger number is 18 ÷ 2 = 9 The difference of the sum and the difference gives twice the smaller number 14 - 4 = 10 → the smaller number is 10 ÷ 2 = 5 → The two numbers are 9 and 5.
It is the sum of the whole number part and the fractional part. eg 5 2/3 = 5 + 2/3
5x + 6
The number is 7.
I think its 6.5 because if 3 is the number doubled then it would be 1.5 and add 5 to that makes 6.5
2n + (-5)
The number is 17.
The sum of 3 and a number, equaling 5, (if you want to know what the number is...) is 2 3+2=5
2x + 5 = 152x = 10x = 5The number is 5.
6+n = 2n+5
Let 'n' represent any number, and 'S' represent sum. S = 5 + 2n
2*n + 5 = 35
2(8 + 5) = 2(13) = 26
10: 3n = 2(n + 5); 3n = 2n + 10; (subtract 2n from each side) n = 10.
Half of 18 is 9 and 5+4 = 9 so the number is 5