Question

How many solutions does the system have? { y = − 3 x + 9 3 y = − 9 x + 9 ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ y=−3x+9 3y=−9x+9 ​

Answer 1

for kahn academy -- b -- ( no solutions)

Explanation:

Answer 2

no solutions

Explanation:

y = − 3 x + 9

3 y = − 9 x + 9

Multiply the first equation by -3

-3(y )=-3( − 3 x + 9)

-3y = 9x -27

3 y = − 9 x + 9

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0 = 0 -18

0 = -18

This is never true so there are no solutions