Question

7x-4y=3, x+2y=3 by subtitution method

Answer 1

hope it is helpful to you

Answer 2

7x-4y=3 -----1

x+2y=3 ------2

6x-6y=0 (subtract 1 and 2)

6(x-y)=0 ( take 6 common )

x-y=0 ----3

( take 6 the other side and 6/0=0)

3y=3 (subtract 3 from 2)

y=1 ( divide both sides by 3)

x-y=0 (substitute y as 3)

x-1=0

x=1

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