mario235 mario235
  • 23-06-2017
  • Mathematics
contestada

2/3x + 5/2y=15 4x + 15 y = 12

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texaschic101
texaschic101 texaschic101
  • 23-06-2017
2/3x + 5/2y = 15...if u dont want to mess with fractions, multiply this by the common denominator of 6....giving us : 4x + 15y = 90

so now we have..
4x + 15y = 12....multiply by -1
4x + 15y = 90
----------------
-4x - 15y = -12.....result of multiplying by -1
4x + 15y = 90
-----------------add
0 = 78......incorrect......there is no solution for this system of equations because ur lines are parallel
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