If you say so!
Placing a question mark at the end of a phrase does not make it a sensible question. Try to use a whole sentence to describe what it is that you want answered.
6
There are two possible (and different) answers: 2x + 3y = 12 or 2*(x + 3y)= 12 The first one is (twice a number) increased by (three times another) The second is twice (a number increased by (three times another)).
49+2x
40 + 2n
15
2X + 3
As an algebraic expression this is written 2x - 12, where x is the unknown number.
18
so the difference between twelve and -34 is 46. half of 46 is 23, That's your answer
12-2n= -72n = 19n = 9.5
Nine less than twice a number equals the same number increased by four?
Let the number be x and so the expression is: 2x+3