1)2,5х-3,6=4,9
2,5х=4.9+3.6
2.5х=8.5
х=8.5÷2.5
х=3.4
2)
Х:16,8+2,61=3,9
Х÷16.8=3.9-2.61
Х÷16.8= 1.29
Х=1.29×16.8
Х=21.672
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Answers & Comments
1)2,5х-3,6=4,9
2,5х=4.9+3.6
2.5х=8.5
х=8.5÷2.5
х=3.4
2)
Х:16,8+2,61=3,9
Х÷16.8=3.9-2.61
Х÷16.8= 1.29
Х=1.29×16.8
Х=21.672