adri14365 adri14365

21-10-2020
Mathematics

contestada

Two times the difference of 13
and a number is -4. Write an
equation representing this
situation and solve for the
number.

Respuesta :

Garden555 Garden555

21-10-2020

Answer:

Step-by-step explanation:

let number be x

CASE 1) when x>13

2(x-13) = 4

2x - 26 = 4

2x = 30

x = 15

CASE 2) when x<13

2(13 - x) = 4

26 - 2x = 4

26 - 4 = 2x

22 = 2x

11 = x

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