Реши уравнения х:7=275+425 90:у=15•2 120:х=400-340 х:8=5•16
х:7=275+425
х:7=700
х=700*7
х=4900
90:у=15•2
90:у=30
у=90:30
у=3
120:х=400-340
120:х=60
х=120:60
х=2
х:8=5•16
х:8=80
х=80*8
х=640
1)х:7=275+425 2)90:у=15•2 3)120:х=400-340 4)х:8=5•16
х:7=700 90:у=30 120:х=60 х:8=80
х=700*7 y=90/30 х=120/60 х=80*8
х=4900 y=3 х=2 х=640
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х:7=275+425
х:7=700
х=700*7
х=4900
90:у=15•2
90:у=30
у=90:30
у=3
120:х=400-340
120:х=60
х=120:60
х=2
х:8=5•16
х:8=80
х=80*8
х=640
1)х:7=275+425 2)90:у=15•2 3)120:х=400-340 4)х:8=5•16
х:7=700 90:у=30 120:х=60 х:8=80
х=700*7 y=90/30 х=120/60 х=80*8
х=4900 y=3 х=2 х=640