Ответ:
5(4х+1)+12=10х-7
20х+5+12=10х-7
20х-10х=-7-12-5
10х=-24
Х=-24/10=-12/5=-2,4
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Ответ:
5(4х+1)+12=10х-7
20х+5+12=10х-7
20х-10х=-7-12-5
10х=-24
Х=-24/10=-12/5=-2,4