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How many solutions exist for the system of equations given below?

 

3a + 4b = 20
12a = 80 − 16b

Select one:
A. One solution
B. Two solutions
C. Infinitely many solutions
D. No solutions

 Mar 2, 2021
 #1
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3a + 4b = 20

12a + 16b = 80


As you can see, if you multiply the first equation by 4, they are both the same. 

This means there are no solutions (D) for this system of equations :)

 Mar 2, 2021

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