Question

Решите уравнение
1) (4n+3n)*11=154
2) (19n-6n):4=26
3) (17n-8n)*13=351

Answer 1

(4n+3n)*11=154
44n+33n=154
77n=154
n=2
(19n-6n):4=26
19n-6n=104
13n=104
n=104:13
n=8
(17n-8n)*13=351
221n-104n=351
117n=351
n=351:117
n=3