[tex]\displaystyle 1)29(54-2x)=1218\\54-2x=42\\-2x=42-54\\-2x=-12\\x=6\\\\2)18(x-10)=162\\x-10=9\\x=9+10\\x=19[/tex]
Ответ:
29(54-2x)=1218
1566-58х=1218
-58х=1218-1566
-58х=-348
х=-348:(-58)
х=6
___________
18(x-10)=162
18х-180=162
18х=162+180
18х=342
х=342:18
х=19
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[tex]\displaystyle 1)29(54-2x)=1218\\54-2x=42\\-2x=42-54\\-2x=-12\\x=6\\\\2)18(x-10)=162\\x-10=9\\x=9+10\\x=19[/tex]
Ответ:
29(54-2x)=1218
1566-58х=1218
-58х=1218-1566
-58х=-348
х=-348:(-58)
х=6
___________
18(x-10)=162
18х-180=162
18х=162+180
18х=342
х=342:18
х=19