Question

(iii) 3.x - y = 3
9x - 3y=9.
solve the following pair of linear equations by substitution method​

Answer 1

Step-by-step explanation:

3x−y=3 …………(1)

9x−3y=9 ………..(2)

Substitution method

3x−y=3

y=3x−3 [Put in equation 2]

9x−3(3x−3)=9

9x−9x+9=9

∴ ∞ solutions because both lines same

3x−y=3 ……..(1)

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3(3x−y)=3×

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3 ………. (2)

1=2.

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Answer 2

Answer:

hope it will help you

Step-by-step explanation:

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