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Check: 5+9(-3) = -3 – 19 5 – 27 = -22 -22 = -22 correct

1) If 5 is added to the product of 9 and a number, the result is 19 less than the number. Find the number. If 5 is added to the product of 9 and a number , the result is 19 less than the number . Find the number. Let x be the number: 5 + 9x = x – 19

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Check: 5+9(-3) = -3 – 19 5 – 27 = -22 -22 = -22 correct

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  1. 1) If 5 is added to the product of 9 and a number, the result is 19 less than the number. Find the number.

  2. If 5 isadded to the product of 9 and a number, the result is19 less than the number. Find the number. Let x be the number: 5 + 9x = x – 19 9x – x = -19 -5 8x = -24 8 8 x = -3 So the number is – 3 Check: 5+9(-3) = -3 – 19 5 – 27 = -22 -22 = -22 correct

  3. 2) A piece of pipe is 50 in. long. It is cut into three pieces. The longest piece is 10in. More than the middle-sized piece, and the shortest piece measures 5 in. less than the middle-sized piece. Find the lengths of the three pieces.

  4. 2) A piece of pipe is 50 mi long. It is cut into three pieces. The longest piece is 10in. more than the middle-sized piece, and the shortest piece measures 5 in. less than the middle-sized piece. Find the lengths of the three pieces. Let x be the length of the middle-sized piece Then x + 10 is the length of the longest piece And x – 5 is the length of the shortest piece x + x + 10 + x – 5 = 50 3x + 5 = 50 3x = 45 x = 15 Therefore, the pieces are: 10, 15 and 25

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