sandraschoolwo sandraschoolwo

30-04-2018
Mathematics

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Which of the following would you add to each side of the equation x-9=12 to get the variable by itself?

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mkryukova19 mkryukova19

30-04-2018

x-9=12
x-9+9=12+9
You need to add 9 to each side of the equation.
x=21

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