4x + 8 + 7x + 12 = 11x + 20
7x + 8 = 36 - 8 = - 8 -------------- 7x = 28 7x/7 = 28/7 x = 4
8+7x = 20+3x 7x-3x = 20-8 4x = 12 x = 3
x2+7x-8 = (x-1(x+8)
Subtract 7x from each side: 8 = -9 Not possible, game over.
4x + 8 + 7x + 12 = 11x + 20
7x + y = 8 Subtract 7x from each side of the equation: y = -7x + 8
7x + 8 = 36 - 8 = - 8 -------------- 7x = 28 7x/7 = 28/7 x = 4
8+7x = 20+3x 7x-3x = 20-8 4x = 12 x = 3
x2 + 7x - 8 = (x + 8)(x - 1)
x2+7x-8 = (x-1(x+8)
7x-5x=8 2x=8 x=4
7x+8 is not possible. you cannot add a non variable to a variable
3x-8
Subtract 7x from each side: 8 = -9 Not possible, game over.
7x + 8
-8 + 7x = x - 506x = -42x = -6