1)211х−511х-511х−5-17х=55
22x – 10 – 17x = 55
22x – 17x = 55 + 10
5x = 65
x = 13
2)58х+38х+38х+3-12=83
40x + 15 – 12 = 83
40x = 83 + 12 – 15
40x = 80
x = 2
3)72х+92х+92х+9+3х=114
14x + 63 + 3x = 114
14x + 3x = 114 – 63
17x = 51
x = 3
4)34х+134х+134х+13=74
12x + 39 = 74
12x = 74 – 39
12x = 35
x = 35/12
х=2,91666666667
1)211х−511х-511х−5-17х=55
22x – 10 – 17x = 55
22x – 17x = 55 + 10
5x = 65
x = 13
2)58х+38х+38х+3-12=83
40x + 15 – 12 = 83
40x = 83 + 12 – 15
40x = 80
x = 2
3)72х+92х+92х+9+3х=114
14x + 63 + 3x = 114
14x + 3x = 114 – 63
17x = 51
x = 3
4)34х+134х+134х+13=74
12x + 39 = 74
12x = 74 – 39
12x = 35
x = 35/12
х=2,91666666667