2x
2x plus 5x simplified is 7x.
-2x^4+16 +2x^4+9-3x^5=-3x^5+25. There is no "answer" because there is no equation.
That depends on whether or not 2x is a plus or a minus
(2x+3)(2x+4)
8x-4
3x + 2x - 8x + 2x = -x
x=1
It is 2x+(-2x) = 0
4
-2x + 6 + 22 = -2x + 28
14
6 + 2x + 5 = 11 + 2x
2x
It can be simplified to: 2x+33
it equals 13X.
2x+92+6x