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System of equations 12x-5y=-20 y=x+4
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System of equations 12x-5y=-20 y=x+4

User TheUnexpected
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12x-5(x+4)=-20
12x-5x-20=-20
12x-5x=-20+20
7x=0
X=0
Y=0+4=4
User Squidpickles
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