The Answer is 43x-15 because you can only combine like terms (as in 2 and 2, or 2x and 2x, but not 2 and 2x
If you mean 3x - 2x * 3x * 43x - 2x * 3x * 43x - 5x * 43x - 20x-17x (negative 17x) is your answer
For x-2x= 3x-43x+1 x-2x= -x and 3x-43x+1 = -40x+1 so -x= -40x+1 subtract -x from both sides 0= -39x +1 -1 = -39x so 1=39x so x=1/39
6 + 2x + 5 = 11 + 2x
4x3+10x2+2x+5= (2x+5)(2x2+1)
4x2 + 12x + 5 = 4x2 + 2x + 10x + 5 = 2x(2x+1) + 5(2x+1) = (2x+1)(2x+5)
(2x+5)(2x+5)
2x
(2x+5)(2x+1)
(x + 1)(2x + 5)
-2x^4+16 +2x^4+9-3x^5=-3x^5+25. There is no "answer" because there is no equation.
3x+5 = 2x+13 3x-2x = 13-5 x = 8