Homework please do 3m - 4 n= - 14 , 2 m + 2 n = 14 Correct and step by step watch carefully
Urgent and correct answer only please
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Answers
Answer: The answer is m=2 and n=5
Step-by-step explanation:
The given equations are 3m - 4n = -14 [1st equation]
and 2m + 2n = 14
⇒m+n = 7
⇒m = 7 - n [2nd equation]
From the 1st equation 3m - 4n = -14
⇒ 3×(7 - n) - 4n = -14 [putting the valu of m from 2nd equation]
⇒ 21 - 3n - 4n = -14
⇒ -7n = -14 - 21
⇒ n = (-35)/(-7)
⇒ n = 5
From the 2nd equation m = 7 - n
⇒ m = 7 - 5 [putting the value of n ]
⇒ m = 2