Solving a math problem in the second semester of grade seven If the inequality system A-X > 0, x + 1 > 0 has no solution, the value range of a needs to be solved

Solving a math problem in the second semester of grade seven If the inequality system A-X > 0, x + 1 > 0 has no solution, the value range of a needs to be solved

{a-x>0(1)
{x+1>0(2)
From (1), we get X-1, so - 1