X - 7 = 11 X = 11+7 therefore X = 18 18 minus 7 equals 11.
There is a formula for "the difference of squares." (x + 7)(x - 7) = 0 x = 7, -7
If you mean: 5x/7 -6 = x then x = -21
(7 x 10) - 4 = 66
x/2 - 7 = -10 x/2 = -3 x = -3 x 2 x = -6
49 - x2 = -(x2 -49) = - (x-7)(x+7) divide by x -7 Answer: -(x+7) = -x-7
7-x
(x+4)(x-7)
x(x - 7)
X - 7 = 11 X = 11+7 therefore X = 18 18 minus 7 equals 11.
(-8) x (-7) - 14 = 42
It's 9 x 7 minus 2 x 7. So its 63 - 14.
x2-x-56 = (x+7)(x-8) when factored
x(x - 7)
x - 7 = 8 x = 7 + 8 x = 15
x2 - 4x - 21 = (x-7)(x+3)
7 - 2x