The answer depends on the question which has not been asked.
2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
x+4+2x = x+20 x+2x-x = 20-4 3x = 16 x = 5 and 1/3
3 to the 2nd power plus 5 x 4 - 9 = 20 32 + 5 x 4 - 9= 9 + 20 - 9= 20
This formula can be better expressed as [(1+2)(2+3)(3+4)] = (20+x)/2. Simplifying, we get 2[(3)(5)(12)] = 20+x. Then the equation becomes 2[180] = 20+x, or 360 = 20+x. Transferring 20 to the other side, we get 360-20 = x. So, x = 340.
It can be simplified to: 3x3+16x2+41x+4 but divided by what is not given
It is 123.99
x+3 = 20 x = 20-3 x = 17
-4 + (3 x 8) = -4 + 24 = 20
If you mean: x+4(x+5) then it is 5x+20
(x+3)(x+4) = x²+7x+12
4x + 4 or 4(x + 1)
(x + 3)(x + 4) = x2 + 7x + 12