3x + 2 + 2x = 7; 3x + 2x = 5x, so 5x + 2 = 7; 7-2=5, so 5x=5. 5x divided by 5 and 5 divided by 5 equals 1, so x equals 1.
3x2 + 5x + 2 is a quadratic expression that can be factored as follows: 3x2 + 5x + 2 = 3x2 + 3x + 2x + 2 = 3x(x + 1) + 2(x + 1) = (3x + 2)(x + 1)
6x^2 + 5x + 1 = (3x +1) (2x + 1)
True.3x^4 + 4x^3 - 3x^4 + 5x + 1= 4x^3 + 5x + 1
x=1 2/3 How?: 2x-4+3 = 5x-6 2x-1 = 5x-6 2x-1+1 = 5x-6+1 2x = 5x-5 2x-5x = 5x-5x-5 -3x = -5 -3x/-3 = -5/-3 x = 5/3 x = 1 2/3
0 because X= -1
3x + 2 + 2x = 7; 3x + 2x = 5x, so 5x + 2 = 7; 7-2=5, so 5x=5. 5x divided by 5 and 5 divided by 5 equals 1, so x equals 1.
(1, 0)
x= -1 answer: 0
3x + 5x = 2x + 28x = 2x + 26x = 2x = (2/6) = 1/3
8x - 19 = 3x + 1 5x -19 = 1 5x = 20 x = 4
For 5x+y=1, you would subtract 5x from each side, so you would get y=1-5x For 3x+2y=2, you would subtract 3x from each side, and then divide by 2. 2y=2-3x y=1-(3/2)x
3x+2 = 5x so 2x = 2 and hence x = 2/2 = 1
x=4
2x +1 = 5x-2 2x +3= 5x 3 = 3x x=1
5x-3x+x+8 = 2x+1+x+x 3x+8 = 4x+1 3x-4x = 1-8 -x = -7 x=7 Hope that helps.
6 + 2x = 5x + 9 , 6 - 9 = 5x - 2x , -3 = 3x , x = -1