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Complete the solutionof the equation find the value of y when x equals 12 x+3y=21 pls help
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Complete the solutionof the equation find the value of y when x equals 12 x+3y=21 pls help

User Peter Milley
by
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L E T M E S O L V E

x+3y=21
12+3y=21
3y=9
/3 /3
y=3

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User Joma
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