Select the best possible first step to solving the system by first eliminating the x variable.
3x − 9y = 6
2x − 11y = 6
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multiply the first equation times 2, and multiply the second equation times -3.
Then, add the equations together.
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yes, then add the equations:
you are adding the *x*'s, the *y*'s and the right sides (12 and 18), separately.
Multiply the first equation by −2, and multiply the second equation by 3.
Multiply the first equation by −2, and multiply the second equation by −3.
Multiply the first equation by 2, and multiply the second equation by 3.
None of the above
those the choices
Well, I offered:
multiply the first equation times 2, and multiply the second equation times -3
(then add the equations -- result#1)
multiply the first equation times -2, and multiply the second equation times 3
(then add the equations -- result#2)
then contrast the first and the second results.
You will observe they are same, except that all signs are flipped.
the answer gone trun out to be 2 right cause 15/30 equal 2