The first equation of the system is multiplied by 4. By what numberwould you multiply the second equation to eliminate the y variableby adding? First: 2x+5y=16 Second: 8x-4y=10 a. 5 b. -5 c. 2 d. -2

Tirimwb

Tirimwb

Answered question

2022-07-26

The first equation of the system is multiplied by 4. By what numberwould you multiply the second equation to eliminate the y variableby adding?
First: 2x+5y=16
Second: 8x-4y=10
a. 5
b. -5
c. 2
d. -2

Answer & Explanation

tykoyz

tykoyz

Beginner2022-07-27Added 17 answers

You would multiply the second equation by 5, giving the y variable -20.
capellitad9

capellitad9

Beginner2022-07-28Added 3 answers

make them the same number
its already an opposite sign on there, so just think of it asgetting a common denominator...

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