lol1111282829191
lol1111282829191 lol1111282829191
  • 05-05-2017
  • Mathematics
contestada

I need help with this any help will be appreciated

I need help with this any help will be appreciated class=

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cafeeeli
cafeeeli cafeeeli
  • 05-05-2017
are you trying to solve for x and y?

y=2x+1; x+2y=17
sub in one variable in the other equation.
x+2(2x+1)=17
x+4x+2=17
5x=15
x=3

now that you have x value, plug into the original equation to find y and check with the other. 
y=2(3)+1 = 7
x+2y=17 = 3 + 2(7) = 17 ; 17=17 
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