1 -x greater than or equal to 5

Question

1-x ≥ 5

 

solved and graphed

Answer 1

1 - x >= 5

 

1 > = x + 5  <--- adds x to both sides

 

1 - 5 >= x  <--- subtracts 5 from both sides

 

-4 >= x

 

x <= -4

 

CHECK:

 

x = -5 ---> 1 - (-5) = 6 >= 5   Yes it works

 

X = 0 ---> 1 - 0 = 1 is not greater than or equal to 5, so it fails as expected.

 

X = -4  ---> 1 - (-4) = 1 +4 = 5, yes it works.