Which of the following are possible ways to eliminate a variable by multiplying first?
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Mathematics, 20.01.2020 07:31 skyebrockbank
Which of the following are possible ways to eliminate a variable by multiplying first?
−x + 4y = 5
9x − 3y = 21
a. multiply the first equation by 3 and the second equation by 4.
b. multiply the first equation by 4 and the second equation by 3.
c. multiply the first equation by 3 and the second equation by 9.
d. multiply the first equation by 9 and the second equation by 4.
e. multiply the second equation by 9.
f. multiply the first equation by 9.
Answers: 3
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