Simplifying Expressions (GEMDAS and Replacement Values)

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What does GEMDAS stand for?

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GEMDAS stands for: G - Grouping, E - Exponents, M - Multiplication, D - Division, A - Addition, S - Subtraction. It is the order of operations used to simplify expressions.

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13

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What is the first step in solving the expression: -12 - 6 (-3) + 8?

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The first step is to evaluate 6 x -3.

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21

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-6

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-9

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What is the purpose of using replacement values in expressions?

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Replacement values allow us to evaluate expressions by substituting variables with specific numbers.

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-18

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The simplified result is 13.

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13