Question

Решить систему:

{0.5-3m=2.5(m-3n)-3,

{19+9n=3(m+6n)+4

Answer 1

{0.5-3m=2.5m-7.5n-3,

{19+9n=3m+18n+4

 

{0.5+3=2.5m-7.5n+3m,

{19-4=3m+18n-9n

 

{3.5=5.5m-7.5n,

{15=3m+9n

 

{3.5=5.5m-7.5n,

{15=3m+9n

3m=15-9n

m=5-3n

3.5=5.5(5-3n)-7.5n

...

 

 

 

Answer 2

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