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Solve the system by substitution. -3x+3=y -x+3y=29

Solve the system by substitution. -3x+3=y -x+3y=29
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Solve the system by substitution. -3x+3=y -x+3y=29

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User Jortizromo
by
8.2k points

1 Answer

12 votes

Answer:

x=-2 , y=9

Explanation:


\left \{ {{-3x+3=y} \atop {-x+3y=29}} \right.\\-x+3(-3x+3)=29\\-x-9x+9=29\\-10x=29-9\\-10x=20\\x=(20)/(-10) =>x=-2\\\\-3x+3=y\\-3(-2)+3=y\\6+3=y=>y=9

answered
User GvSharma
by
7.7k points
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