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anonymous
 4 years ago
solve each system by substitution: xy3z=9, z=3x1, x=5yz+23
anonymous
 4 years ago
solve each system by substitution: xy3z=9, z=3x1, x=5yz+23

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amorfide
 4 years ago
Best ResponseYou've already chosen the best response.0well your second equation gives you the value of z substitute z into the other two equations now you have two equations to solve so you would then make y the subject using one of the two equations you have then substitute y into the other equation then you will get a value of x then substitute your value of x into the equation to get y then substitute x and y into original equations to get z

amorfide
 4 years ago
Best ResponseYou've already chosen the best response.0let me start you off xy3z=9 equation 1 z=3x1 equation 2 x=5yz+23 equation 3 sub equation 2 into 1 and 3 xy3(3x1)=9 equation 1 x=5y(3x1)+23 equation 3 now simplify and follow my instructions from before
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