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Example: (7x-9y+7z) + (7x-9y-7z) - (6x+7y+6z) = _____ ? Solution: Removing the parenthesis and rearranging the terms, the expression = 7x + 9y + 7z + 7x- 9y - 7z - 6x - 7y - 6z = 7x + 7x -6x - 9y - 9y - 7y + 7z - 7z - 6z = 8x-25y-6z Directions: Simplify the following algebraic expressions. Also write at least 10 examples of your own. |