В) ( х + 24.3 ) / 18.3 = 3.1
Г) (у - 15.7) / 19.2 = 4.7
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В) ( х + 24.3 ) / 18.3 = 3.1х+24,3=3,1*18,3
х+24,3=56,73
х=56,73-24,3
х=32,43
Г) (у - 15.7) / 19.2 = 4.7
у-15.7=4.7*19.2
у-15.7=90,24
у=90,24+15,7
у=105.94