[tex]\displaystyle\bf\\4x-5=7\\\\4x=7+5\\\\4x=12\\\\x=12:4\\\\x=3\\\\Otvet \ : \ 3[/tex]
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[tex]\displaystyle\bf\\4x-5=7\\\\4x=7+5\\\\4x=12\\\\x=12:4\\\\x=3\\\\Otvet \ : \ 3[/tex]
Verified answer
4х-5=74х=7+5
4х=12
х=3
Відповідь: 3