1 2/3x+7/9=5 5/6
5/3х+7/9=35/6
5/3х=35/6-7/9
5/3х=105/18-14/18
5/3х=91/18
х=91/18 : 5/3
х=91/18 * 3/5
х=91/6*1/5=91/30=3 1/30
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1 2/3x+7/9=5 5/6
5/3х+7/9=35/6
5/3х=35/6-7/9
5/3х=105/18-14/18
5/3х=91/18
х=91/18 : 5/3
х=91/18 * 3/5
х=91/6*1/5=91/30=3 1/30