7xsquare = 7 x square = 1 x = +1 or -1
7x-2
8x=7x-7 x=-7
12x - 4 = 7x - 21 12x -7x = -21 + 4 5x = -17 x = -3.4
7x+8-x-7 6x+1
None. 7x - 1 is not equal to 7x - 7.
7xsquare = 7 x square = 1 x = +1 or -1
7x-2
The area of square is : 49.0
8x=7x-7 x=-7
63
12x - 4 = 7x - 21 12x -7x = -21 + 4 5x = -17 x = -3.4
7x+8-x-7 6x+1
x=(-9/7) 7x+12=3 7x=(-9) x=(-9/7)
It is equal to 21x You can not find x.
There are no real factors.Complex factors are (7x + 9yi) and (7x - 9yi) where i is the imaginary square root of -1.
Let the number be x: 7x-6 = -20 7x = -20+6 7x = -14 x = -2