It is simply: x+18 or 18+x
18 - 3n
If: x+18 = 2x Then: x = 18
Let x be the number and so it is: 3x-18
Algebraic set up. 6X + 18 = 168 subtract 18 from each side 6X = 150 X = 25 check 6(25) + 18 = 168 150 + 18 = 168 168 = 168 checks
If a number is added to itself, it is twice that number → 18 ÷ 2 = 9 → 9 + 9 = 18
6+2x=18 x=6
18+x=27 calculate and your answer should be 9.
18-(2/x)
It is 18/n.
18/n
It is an algebraic expression
9