Question

solve the pair of linear equation by elimination method

3x-y=3
9x-3y=9
​

Answer 1

Answer:

Infinite solutions...

Step-by-step explanation:

3x - y = 3 -------------- Equation 1

and

9x - 3y = 9 ------------ Equation 2

Note Equation 1:

3 * ( 3x - y ) = 3 * 3

9x - 3y = 9 ------------ Equation 3

Subtracting Equation 3 from Equation 2

( 9x - 3y ) - ( 9x - 3y ) = 9 - 9

0 = 0

This shows us that the pair of Equation above have infinite number of solutions...

So, just keep any value in x or y, you will get the other variable's solution too.

CONSLUSION : THEY DON'T HAVE A UNIQUE SOLUTION