Ответ:
4(х-4) +3(х+1) =36
4х-16+3х+3=36
7х-13=36
7х=36+13
7х=49
х=7
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Ответ:
4(х-4) +3(х+1) =36
4х-16+3х+3=36
7х-13=36
7х=36+13
7х=49
х=7