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140
1 lt; (2x-1)/2 lt; 2 we Multiply all inequality by 2: 2 lt; 2x-1 lt; 4 we Add unit to each part of inequality: 2+1 lt; 2x-1+1 lt; 4+1 3 lt; 2x lt; 5 we Divide all inequality into 2: 3/2 lt; x lt; 5/2 1,5 lt; x lt; 2.5
48
Answer add