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Mathematics
Julio Valenzuela
18 April, 15:01
Y = 9x - 9 y = 9 substitution method
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Brooks Stephenson
18 April, 16:37
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You would plug in the y=9 into the first equation and then have the expression 9=9x-9
. After going through the first steps of solving an expression you would get 18=9x. X=2. Then you would plug in the x value into the first expression to get y=9.
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