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Writing 2 step equations. 12 more than the product of a number X and 4 is equal to -48 Product means …….multiply X X 4X 4 4X = -48 More than means …addition.

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Presentation on theme: "Writing 2 step equations. 12 more than the product of a number X and 4 is equal to -48 Product means …….multiply X X 4X 4 4X = -48 More than means …addition."— Presentation transcript:

1 Writing 2 step equations

2 12 more than the product of a number X and 4 is equal to -48 Product means …….multiply X X 4X 4 4X = -48 More than means …addition 4X12 + -12 4X= -60 44 X = -15

3 13 is 7 less than one-fourth of a number One-fourth means …….Multiply by ¼ X X ¼X ¼ ¼x - 7 less than means …subtraction ¼X13 = + 7 20= ¼x 4  X = 80 = 20¼x 44

4 The current temperature is 54°F. It is expected to rise 2.5°F each hour. In how many hours will the temperature be 84°F? What do we know? Current temperature is54° The temperature is going to rise 2.5°each hour We want to know how long it will take to reach 84° 54 + 2.5h = 84 -54 2.5h = 30 2.5 h = 12

5 Page 413 1 – 10 all

6 12 more than the product of a number X and 4 is equal to -48 Product means ……. = More than means … X+ X= X =

7 13 is 7 less than one-fourth of a number One-fourth means ……. - less than means … X = = x X = = x

8 The current temperature is 54°F. It is expected to rise 2.5°F each hour. In how many hours will the temperature be 84°F? What do we know? Current temperature is_____° The temperature is going to rise ______°each hour We want to know how long it will take to reach ____° + h = h =


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