6 5/6х = 4,1* 6,5
41/6х = 26,65
х = 3,9
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4 3/4х = 0,38 * 1 7/8
19/4х = 0,38 * 15/8
19/4х = 0,7125
х = 0,15
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3 5/7х = 10,4 * 5/11
26/7х = 52/5 * 5/11
26/7х = 52/11
х = 14/11
х = 1ц.3/11
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1,25х = 1,4 * 0,75
1,25х = 1,05
х = 0,84
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0,4х = 3 1/2 * 1 1/7
0,4х = 7/2 * 8/7
0,4х = 4
х = 10
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2,88х = 15,6 * 14 2/5
2,88х = 15,6 * 14,4
2,88х = 224,64
х = 78
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