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Write each sentence as an equation.
1) The sum of a number and 16 is 58.
2) The product of a number and 8 is 80.
3) 12 divided by a number is 3.
4) A number minus 8 equals 21.

Respuesta :

1) x + 16 = 58

2) 8x = 80

3) 12/x = 3

4) x - 8 = 21

Answer:

(The ones underlined are the equation)

1) Let the number be x

x + 16 = 58

x = 58 - 16

x = 42

2) let the number be x

x * 8 = 80

x = 80/8

x = 10

3) let the number be x

12/x = 3

x = 12/3

x = 4

4) let the number be x

x - 8 = 21

x = 21 + 8

x = 9

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