Fifty Two
2*4 + 3*x = 34
2 (N + 3)
18
The number is 7.
sum - means addition less - means subtraction twice - means multiply by 2
The number could be -12.5326 or 10.5326 (approx).
2a+3>49
If the number is n, then twice the number is 2n and the sum of the two is n + 2n = 3n.
2(n+3)
2n + 3 > 49 n > 23
This is an algebraic expression. It can be written as 3(2x + 4)
18 is the only number (other than 0) that is twice the sum of its digits.