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kodGreya [7K]
3 years ago
14

Which constants can be multiplied by the equations so one variable will be eliminated when the systems are added together?

History
2 answers:
Ronch [10]3 years ago
3 0
You can start off by distributing the x-variables and using the LCM of 5 and 12

5 = 5x1
12= 2x2x3

LCM: 1x2x2x3x5= 60

We could also determine the LCM of 13 and 7 (y-variables), since they are both prime numbers. 

13x7= 91

The LCM is 91.
nordsb [41]3 years ago
3 0

The first equation can be multiplied by –12 and the second equation by 5 to eliminate x.

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