Question

(iii) 3x-y=3
9x - 3y=9
solve it by substitution mehod
plzzz ​

Answer 1

Answer:

X and y are 0

Step-by-step explanation:

3x-y=3 and 9x-3y=9

multiply first equation with 3

we get , 9x-3y=9

9x-3y=9

9x-3y=9

------------

0

X,y are 0

Answer 2

Answer:

here A1 -3 B1-1 C1-3

A2-9 B2-(-3). C2-9

formula-a1/A2=b1/b2=C1/C2.

Step-by-step explanation:

and then put the values

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