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Write an algebraic model for the statement then solve the model the sum of a number and -9 is -21
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Write an algebraic model for the statement then solve the model the sum of a number and -9 is -21

User Aleksandar Vucetic
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1 Answer

4 votes

Answer:


x + ( - 9) = - 21


x - 9 = - 21


x = - 12

User Nuander
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