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Wuhan 20 17 may turn to mathematics.
The solution 1:∫ line y=kx+b passes through A(- 1, 1) and B(-0).

∴? k+b= 1? 7k+b = 0,k = 7+ 16b = 7+76。

The analytical formula of ∴ straight line is: y=7+ 16x+7+76,

∫-x > kx+b > 0,

∴ 0 < 7+ 16x+7+76

Solution 2:∫A(- 1, 1) and B (-7,0),

∴ According to the function image, when x >-7, the straight line is above the X axis, that is, KX+B > 0.

When -7 < x kx+b > 0 holds.

So the answer is: -7 < x