acostakassandraKC acostakassandraKC
  • 27-01-2017
  • Mathematics
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solve the system of linear equations by using substitutions

solve the system of linear equations by using substitutions class=

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TheRealPeridot
TheRealPeridot TheRealPeridot
  • 27-01-2017
Start by placing the second equation in for Y so you have 
2x+2(5+x)=10
Then distribute the 2
2x+10+2x=10
Then combine like terms 
4x+10=10
Then subtract the 10 over
4x=0
Then divide the 4 and because 0 divided by 4 is 0
x=0
Then plug it back into one, Ill choose the second
y=5+0
Then add 5+0 and you get y=5
Your solution is (0,5)

Hope I Helped! :) <3 
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