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-x+3≥2
-x≥2-3
-x≥-1
x≤1
-2,5b+3 ≥ 2,5-2b
-2,5b+2b≥2,5-3
-0,5b≥-0,5
b≤1
-x≥1:3/2
-x≥3/2
x≤-3/2
-2,5b+3 ≥ 2,5-2b
-2,5b+2b≥2,5-3
-0,5b≥-0,5
b≤1
-2x+3≥2
-2x≥2-3
-2x≥-1|:(-2)
x≤0,5
-2,5b+3 ≥ 2,5-2b
-2,5b+2b≥2,5-3
-0,5b≥-0,5|:(-0,5)
b≤1