30+16х-35(х-7)=82
30+16х-35х+245=82
275-19х=82
-19х=82-275
-19х=-193
х=10ц 3/19
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30+16х-35(х-7)=82
30+16х-35х+245=82
275-19х=82
-19х=82-275
-19х=-193
х=10ц 3/19