savannabuchanan savannabuchanan
  • 25-11-2018
  • Mathematics
contestada

Solve this system of equation using substitution y=2x-4 x+2y=10

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Nemo2002 Nemo2002
  • 25-11-2018
Y=2x-4
X+2y=10

Put y into the x equation
X+2(2x-4) =10

Expand and simplify
X+4x-8=10
5x-8 =10
5x=10+8
5x=18
X=18/5

Insert x into the original equation to get y
Y=2x-4
Y=2(18/5)-4
Y=16/5
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ym039961
ym039961 ym039961
  • 18-11-2020

Answer:

I'm terrible at explaining so here's some screenshots

- Ripper

Step-by-step explanation:

Ver imagen ym039961
Ver imagen ym039961
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