samuelhayes samuelhayes

04-02-2021
Mathematics

contestada

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

Respuesta :

UnLedZep UnLedZep

04-02-2021

Answer:

x=-2 , y=9

Step-by-step explanation:

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

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