Answer :
Given … (1)
And … (2)
Expressing x of equation (1) in terms of y,
… (3)
Substituting (3) in (2),
⇒ 21y – 15 = 6y
⇒ 21y – 6y = 15
⇒ 15y = 15
∴ y = 1
Substituting y value in (3),
∴ x = 1
∴ By solving, we get x = 1 and y = 1.
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