1) 43у=172
у=4
2)28х+140=224
28х=84
х=3
3)77n-154
n=2
1.11у + 32у - 127 = 45
43у = 172
у = 172/43
у = 4
2. 28*(х+5)=224
28х + 140 = 224
х= 84/24
3. (4n + 3n)*11= 154
44n+33n=154
77n=154
n=154/77
1) 43у=172
у=4
2)28х+140=224
28х=84
х=3
3)77n-154
n=2
1.11у + 32у - 127 = 45
43у = 172
у = 172/43
у = 4
2. 28*(х+5)=224
28х + 140 = 224
28х=84
х= 84/24
х=3
3. (4n + 3n)*11= 154
44n+33n=154
77n=154
n=154/77
n=2