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0,7x-2≤0,9x-0,1/-0.9x
0.2x-2≤-0.1/+2
0.2x≤1.9
x≤9.5
zad 2
-x+3≥-(3x-2)
-x +3≥-3x +2/-3
-x≥-3x –1/+3x
2x≥-1
x≥-1/2
2y<0,6
y<0,2[zł]
b)p*12+90≤650
12p≤560
p≤46 2/3[kg]
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