4(x-1)-(9x-5)≥ 7
4х-4-9х+5≥7
-5х≥7-1
-5х≥6
х<=-6/5
х<=- 1 1/5
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4(x-1)-(9x-5)≥ 7
4х-4-9х+5≥7
-5х≥7-1
-5х≥6
х<=-6/5
х<=- 1 1/5