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Review of Algebra and Equations

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# Review of Algebra and Equations - PowerPoint PPT Presentation

Review of Algebra and Equations. ALGEBRA. Rules: Only LIKE TERMS may be added or subtracted When multiplying or dividing, use exponent laws Distributive Property: a( b+c ) = axb + axc. Examples. 1. x(x + 5) + 2(x – 7) 2. 4x(x – 9) – (x – 10). Examples:. 3.

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### Review of Algebra and Equations

ALGEBRA
• Rules:
• Only LIKE TERMS may be added or subtracted
• When multiplying or dividing, use exponent laws
• Distributive Property:
• a(b+c) = axb + axc
Examples
• 1. x(x + 5) + 2(x – 7)
• 2. 4x(x – 9) – (x – 10)
EQUATIONS: The DANLAD Procedure
• D – Distributive Property
• A – Add like terms on each side
• N – Numbers on right side
• L– Letters on left side
• A – Add like terms on each side
• D – Divide by the coefficient in front of the variable
Examples:
• 1. 6(5k – 8) – 20 = 11(2k-3) + 3k
• 2. -4(3 – 6d) = 9(2d – 2)