5m - 3n = 19
m - 6n = -7
solve the following simultaneous
Answers
Answered by
1
Answer:
m=5
n=2
Step-by-step explanation:
by solving both equations we get m=5 and n=2
Answered by
3
Answer:
Solution is (m, n) = (5, 2).
Step-by-step explanation:
5m - 3n = 19 .... (1)
m - 6n = - 7 ...... (2)
Multiply (1) by 2
10m - 6n = 38 ... (3)
Subtract (2) from (3)
10m - 6n - (m - 6n) = 38 - (-7)
=> 10m - 6n - m + 6n = 38 + 7
=> 10m - m = 45
=> 9m = 45
=> m = 45/9
=> m = 5
Put m = 5 in (2)
m - 6n = - 7
=> 5 - 6n = - 7
=> - 6n = - 7 - 5
=> - 6n = - 12
=> 6n = 12
=> n = 12/6
=> n = 2
So, value of m is 5 and n is 2.
Solution is (m, n) = (5, 2).
Similar questions
Social Sciences,
5 months ago
Math,
5 months ago
World Languages,
5 months ago
English,
11 months ago
Math,
11 months ago
English,
1 year ago