45÷(4m-m)=3 (19n-6n)÷4=26 (16m+5m)÷18=7 (17n-8n)×13=351

Question

45÷(4m-m)=3
(19n-6n)÷4=26
(16m+5m)÷18=7
(17n-8n)×13=351

Answer 1

45÷3m=3
15m=3
m=0.2

13n=144
n=11,1/3

21m=126
m=6

9n=27
n=3