Question 5.
Solve the following simultaneous equation.
5m – 3n = 19; m – 6n = –7
Answer:
Multiply Eq. II by 5
equating (I) and (III), change the sign of Eq. (III)
Adding both we get
⇒
⇒
⇒ n = 2
Substituting n = 2 in Eq 1
⇒ 5m - 3(2) = 19
⇒ 5m - 6 = 19
⇒ 5m = 25
⇒ m = 5
∴ Solution is (m , n) = (5, 2)
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