Asked by robbie
Help and explain please
9m+n=22
m-3n=18
9m+n=22
m-3n=18
Answers
Answered by
helper
Assuming you want to solve these simultaneously.
9m + n = 22
m - 3n = 18
To eliminate variable n, mulyiply the first equation by 3
3(9m + n = 22) = 27m + 3n = 66
Now add these two equations together
27m + 3n = 66
m - 3n = 18
28m + 0 = 84
28m = 84
m = 3
Substitute m = 3 in m - 3n = 18, to find n
m = 3
m - 3n = 18
3 - 3n = 18
-3n = 15
n = -5
So, the solution is,
(3, -5)
9m + n = 22
m - 3n = 18
To eliminate variable n, mulyiply the first equation by 3
3(9m + n = 22) = 27m + 3n = 66
Now add these two equations together
27m + 3n = 66
m - 3n = 18
28m + 0 = 84
28m = 84
m = 3
Substitute m = 3 in m - 3n = 18, to find n
m = 3
m - 3n = 18
3 - 3n = 18
-3n = 15
n = -5
So, the solution is,
(3, -5)
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.