Решите уравнение:
1) 2*(11*х-5)-17*х;
2)5*(8*х+3)-12=83;
3) 7*(2*х+9)+3*х=114
4) 3*(4*х+13)-25=74
1) 2*(11*х-5)-17*х;
2)5*(8*х+3)-12=83;
3) 7*(2*х+9)+3*х=114
4) 3*(4*х+13)-25=74
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Answers & Comments
22х-10-17х=55
5х-10=55
5х=55+10
5х=65
х=65:5
х=13
2) 5*(8*х + 3 )-12= 83
40х+15-12 = 83
40х + 3=83
40х=83-3
40х=80
х= 80:40
х= 2
3) 7*(2*х+9)+3*х=114
14х+63+3х=114
17х+63=114
17х=114-63
17х=51
х= 51:17
х= 3
4) 3*(4*х+13)-25=74
12х+39-25 = 74
12х+14=74
12х=74-14
12х=60
х= 60:12
х= 5
5х-10=55
5х=55+10
5х=65
х=65÷5
х=13
2) 40х+15-12=83
40х+3=83
40х=83-3
40х=80
х=80÷40
х=2
3) 14х+63+3х=114
17х=114-63
17х=51
х=51÷17
х=3
4) 12х+39-25=74
12х+14=74
12х=74-14
12х=60
х=60÷12
х=5