mouraj
mouraj mouraj
  • 11-12-2016
  • Mathematics
contestada

Solve the system of equations.

5x + y = 9
3x + 2y = 4

Respuesta :

AOMTH
AOMTH AOMTH
  • 11-12-2016
y=-5x+9

3x+2(-5x+9)=4
3x-10x+18=4
-7x=4-18
-7x=-14
x=2

5(2)+y=9
10+y=9
y=9-10
y=-1

The answer is (2,-1) :)
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