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In the equation below, what value can be plugged in for (a) to give it infinite solutions for 21 + 14 - 7(3x+a)

In the equation below, what value can be plugged in for (a) to give it infinite solutions for 21 + 14 - 7(3x+a)
asked 27.0k views
5 votes
In the equation below, what value can be plugged in for (a) to give it infinite solutions for 21 + 14 - 7(3x+a)

asked
User Bryan Costanich
by
7.9k points

1 Answer

4 votes

Answer: 21x+%2B+14+=+7%283x+%2B+a%29

21x%2B14=21x%2B7a

21x-21x%2B14=7a

14=7a

a=2

answered
User Rcpfuchs
by
8.2k points
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