Решите уравнение:
1) 3*(5х+8+х)
2) (4х+8)*7
3) 5(10у+7)
4) 21х*(7+4х)
5) 32х-12=55
1) 3*(5х+8+х)
2) (4х+8)*7
3) 5(10у+7)
4) 21х*(7+4х)
5) 32х-12=55
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Answers & Comments
2)(4х+8)*7=7*4х+7*8=28х+56;
3)5(10у+7)=5*10у+5*7=50у+35;
4)21х*(7+4х)=21х*7+21х*4х=147х+84х^;
5) 32х-12=55
32х=55+12
32х=67
х=67:32
х=2,09375