5 - X - X = - 1
5 - 2X = - 1
subtract 5 from both sides
- 2X = - 6
divide both sides integers by - 2
X = 3
=======check in original equation
5 - 3 - 3 = - 1
- 1 = - 1
=======checks
If: x = -5 Then: y = (3*-5)-1 = -16
x (x+5) = 6 X equals 1.
9
1 x 25, 5 x 5, 25 x 1
-4
If [ y = x + 2 ], then x is not -1 when y = 5.If [ y = x + 2 ],then when x = -1, y = 1,and when y = 5, x = 3.
If: x = -5 Then: y = (3*-5)-1 = -16
x(x + 1) = x**2 + x
x=-1/2
x (x+5) = 6 X equals 1.
9
1 x 25, 5 x 5, 25 x 1
1 x 25, 5 x 5, 25 x 1
X = 1
x-1+5=2x-1 becomes -x = -5 so x=5
-4
1 x 35, 5 x 7, 7 x 5, 35 x 1.