KiaraMay KiaraMay

24-01-2017
Mathematics

contestada

Solve this using elimination method
5x+25y=60
3x+15y=42

Respuesta :

texaschic101 texaschic101

24-01-2017

5x + 25y = 60....multiply by -3
3x + 15y = 42....multiply by 5
-------------------
-15x - 75y = - 180 (result of multiplying by -3)
15x + 75y = 210 (result of multiplying by 5)
-------------------add
0 = 30...incorrect.....this system has no solutions

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