Question

.If the pair of linear equations 2x+3y+7=0 and 10x+20y+k=0 are coincident then find the

value of ‘k’​

Answer 1

Answer:

i)2x+3y=7

2*2+3*1=k

4+3+7=k

k=14 " value of k is find "

ii)10x+20y+k=0

10*x+20y+k=0

20+20

k=40" value of k is finded "

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