cecole99 cecole99
  • 19-06-2017
  • Mathematics
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Use substitution to solve the system. y = 3x-4 4x-5y = −13

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mergl
mergl mergl
  • 20-06-2017
y=3x-4
4x-5y=-13
4x-5(3x-4)=-13
4x-15x+20=-13
-11x+20=-13
33=11x
x=3
y=3(3)-4
y=9-4
y=5
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