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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). Examples:. 3.
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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.
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)