Question

3x+2y=7
x=3-y
find x and y using substitution

Answer 1

Answer:

Hello...

3x+2y =7 ...(1)and x=3-y ....(2)(given)

substituting (2)in (1)

3(3-y) +2y =7

9-3y +2y =7

-y =7-9

-y =-2

:.y =2...

substituting y in (2)

x =3-2

:.x=1....

Hence x=1 and y =2...

Hope it helps...

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