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Solve the following pair of linear equations by substitution method : 3x + y -11=0 , x - y -1=0

Posted by Shruti Sharma 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years, 4 months ago

3x + y -11=0........... (i)

x - y -1=0

x = y + 1 ............ (ii)

Substitute (ii) in (i), we get

3(y+ 1) + y - 11 =0

3y + 3 + y - 11 =0

4y - 8 =0

4y = 8

y = 8/2 =4

Put y = 4 in (ii) , we get

x = y + 1

x= 5

1Thank You

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