chickenpotpie123 chickenpotpie123
  • 30-09-2020
  • Mathematics
contestada

solve the system by elimination.4x+8y=20 -4x+2y=30

Respuesta :

liz0440 liz0440
  • 30-09-2020
4x+8y=20
-4x+8y=30
——————-
-4 and 4 cancel each other
16y=50
y= 25/8

4x+8y=20
4x+8(25/8)=20
4x+25=20
-25 -25
4x=-5
x= -5/4

(25/8 , -5/4)
Answer Link
miriamgomez863
miriamgomez863 miriamgomez863
  • 30-09-2020
Correct
25/8, -5,4
Would be your answer
Answer Link

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