marcoaarmendari
marcoaarmendari marcoaarmendari
  • 27-09-2016
  • Mathematics
contestada

Solve this system of equations using substitution.

a + b + c = 180
b = 3a
c = 5a

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JamesPotter
JamesPotter JamesPotter
  • 27-09-2016
A is equal to 20 .....
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