Q. 21

# Solve the following systems of equations:

Answer :

Multiplying eq1 by 1/3 and eq2 by 1/5 and subtracting

⇒ 1/18y + 3/35y = 4 - 8/5

⇒ 89/630y = 12/5

⇒ y = 89/1512

Thus, 1/5x + 1512/534 = 12

⇒ 1/5x = 816/89

⇒ x = 89/4080

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