1) 85+48÷(11-х)=91
7 – 3.1 + 0.1y = – 0.2y
0,1y + 0,2y = 3,1 – 7
0.3y = -3.9
y = -13
2) 286-49÷(2х-5)=79
286-79(2х-5)=49
286-158х+395=49
-158х=49-286-395
-158х=-632
х=-632/-158
х=4
1) (16m+5m)÷18=7
16m+5m=18*7
16m+5m=126
21m=126
m=126/21
m=6
2) (17n-8n)×13=351
17n-8n=351/13
17n-8n=27
9n=27
n=27/9
n=3
1) 85+48÷(11-х)=91
7 – 3.1 + 0.1y = – 0.2y
0,1y + 0,2y = 3,1 – 7
0.3y = -3.9
y = -13
2) 286-49÷(2х-5)=79
286-79(2х-5)=49
286-158х+395=49
-158х=49-286-395
-158х=-632
х=-632/-158
х=4
1) (16m+5m)÷18=7
16m+5m=18*7
16m+5m=126
21m=126
m=126/21
m=6
2) (17n-8n)×13=351
17n-8n=351/13
17n-8n=27
9n=27
n=27/9
n=3