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Mathematics
Reina Duffy
24 April, 23:12
System of equations 12x-5y=-20 y=x+4
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Philip Landry
24 April, 23:51
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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
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