Question

решите уравнение:
2(11х-5)-17х=55
5(8х+3)-12=83
7(2х+9)+3х=114
3(4х+13)-25=74

Answer 1

2(11х-5)-17х=55
22х-10-17х=55
5х=55+10
5х=65
х=65/5
х=13

5(8х+3)-12=83
40х+15-12=83
40х=83-15+12
40х=80
х=80/40
х=2


7(2х+9)+3х=114
14х+63+3х=114
17х=114-63
17х=51
х=51/17
х=3

3(4х+13)-25=74
12х+39-25=74
12х=74-39+25
12х=60
х=60/12
х=5