3.1 Transforming Equations: Addition and Subtraction Objective: To solve equations using addition and subtraction. Warm – up: Simplify: 1) 9 + (-2 + p)

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3.1 Transforming Equations: Addition and Subtraction Objective: To solve equations using addition and subtraction. Warm – up: Simplify: 1) 9 + (-2 + p) = -12) 6 – (2 – x) = -2 3) x + (-4) = 44) 5 – (4 + m) = 12

3.1 Transforming Equations: Addition and Subtraction Steps to solving Word Problems! o Write an equation based on the facts of the problem. o Solve the equation. o Answer the question asked in the problem. Solve. Show all your steps! o 37 less than a number is -19. What is the number? o Twenty-two less than a number is -7. What is the number?

3.1 Transforming Equations: Addition and Subtraction Follow the steps to solve the word problem. o If a number is decreased by 8, the result is -21. What is the number? Beth ran the 400-meter dash in 56.8 seconds. This was 1.3 seconds less than her previous time. What was her previous time?

3.1 Transforming Equations: Addition and Subtraction Follow the steps to solve the word problem. The temperature at the summit of Mt. Mansfield dropped 17⁰ F between 4pm and 11pm. If the temperature at 11pm was -11⁰ F, what was the temperature at 4pm? During one day of trading in the stock market, an investor lost $2500 on one stock, but gained $1700 on another. At the end of trading that day, the investor’s holdings in those two stocks were worth $52,400. What were they worth when the market opened that day?

3.1 Transforming Equations: Addition and Subtraction Follow the steps to solve the word problem. o Kerry bought a picture frame on sale for $4.69. A week later, she returned to buy another frame. However, she had to pay the regular price for the second one. If the two frames cost Kerry $10.64, how much had the store reduced the price for the sale? Homework: – Pg. 98 Problems #1 – 17 odd