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Solving Equations, Combining Like Terms & Perimeter Calculation

Learn how to solve equations, combine like terms, and calculate the perimeter of geometric figures. Understand key terms such as coefficient, variable, and like terms. Practice with various examples and improve your math skills.

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Solving Equations, Combining Like Terms & Perimeter Calculation

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  1. Review Solve the equation • 17 = 5 + x • x - 9 = 15 • 4x = 24 4)

  2. More review Solve the equation 5) X – 15 = - 12 6) -14x = 42 7)

  3. Simplify the following • (-10x)(-6) • 3(-3x) • 2(10 – 6x) • -(-2x + 10y – 6)

  4. Chapter 3 Section 4 Combining Like Terms

  5. Vocabulary Term: • Single number or variable • Product of a number and one or more variables. Example: 5, x, 3xy, 9p

  6. Term Two parts • Number – coefficient • Variable Example: Term: 3x

  7. Fill in the blank Term: Coefficient: Variable:

  8. Like Terms Variables are the same 4x, 3x 2xy, 15xy 4 apples, 3 apples

  9. Combine line terms • 4 bananas + 3 bananas • 6 pears + 7 pears • 3 bananas + 2 pears + 5 bananas + 7 pears

  10. Combine line terms • 4 bananas + 3 bananas • 4 b + 3 b • 6 pears + 7 pears • 6p + 7 p • 3 bananas + 2 pears + 5 bananas + 7 pears • 3b + 2p + 5b + 7p

  11. Try • 2x +3y – 5x + 8y • 2(5 – 3x) + 6x • -(3x + 4) + 2x

  12. Try these d) -16x +7 e)

  13. Simplify before combine • Try: 2(5 – 3x) – 4(x + 3)

  14. Find the perimeter 12 ft 4 feet What is the units for the answer?

  15. Summary • Vocabulary • Terms • Coefficient • Variable • Like terms • Combine like terms • Perimeter of a geometric figure.

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