In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
-2x +5 ≤ 10
x ===> ?
Step 02:
-2x +5 - 5 ≤ 10 - 5
-2x ≤ 5
-2x /-2 ≤ 5 /-2
x ≥ - 5/2
The answer is:
x ≥ - 5/2 [-5/2, oo)
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