The x is the unknown. 3x + 2 by itself doesn't mean much, but when you turn it into an equality, the value for x can be learned by manipulating the equation. For example if 3x + 2 = 8, then 3x + 2 - 2 = 8 - 2, so 3x = 6. 3x/3 = 6/3, so x =2. The value for x may be a number, or it may be another equation, or another mathematical expression, depending on the nature of the problem.
x3+3x2+3x+2 divided by x+2 equals x2+x+1
you mean: x+3x+3=x+18 so x=5
3x^2 + x + 2x^2 = 5x^2 + x
3x+5<x+11 3x<6 x<2
simplify it, 7x-12=x+2+2x-3x 7x=2+12+3x-3x 7x=14 x=2
If you mean: 3x+2 = 8 then x = 2
x^2 + 3x + 2/(-3x) - x^2 - 2=3x-2+2/(-3x)=3x-2-2/(3x)
x3+3x2+3x+2 divided by x+2 equals x2+x+1
If you mean: 2x+3x then it is simplified to 5x
If you mean: 3x^2 +31x +36 then it is (3x+4)(x+9) when factored
If you mean x+2y = -2 and 3x+4y = 6 then the solutions to the equations are x = 10 and y = -6
x = 7 and 2/3
you mean: x+3x+3=x+18 so x=5
3x^2 + x + 2x^2 = 5x^2 + x
3x+5<x+11 3x<6 x<2
simplify it, 7x-12=x+2+2x-3x 7x=2+12+3x-3x 7x=14 x=2
x-2=3x+1 x=3x+1+2 x-3x=3 -2x=3 x=-3/2