Ответы и объяснения

2013-10-04T09:49:43+04:00
29x - 15x +16 =100
29x-15x = 100 -16
14x = 84
x=6

11y +32y -127 = 45
11y +32y = 45+127
43y = 172
y=4

15z +8z -59 = 102
15z +8z = 102 +59
23z = 161
z= 7
2013-10-04T16:52:53+04:00
1) 29х-15х+16=100
29x-15x=100-16
14x=84
x=6

2) 11у+32у-127=45
11y+32y=45+127
43y=172
y=4

3) 15z+8z-59=102
15z+8z=102+59
23z=161
z=7