10n
15
2X + 3
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)).
Let the number be x and so the expression is: 2x+3
The difference between a number x and twice y is equal to fifteen.
18
Twice a number increased by eight is greater than negative four.
10n
6
15
40 + 2n
49+2x
x + 2x
2X + 3
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)).
2(n+3)