armanimoniquehunter armanimoniquehunter

07-05-2020
Mathematics

contestada

twice a number decreased by 20 is 50.

Respuesta :

devishri1977 devishri1977

07-05-2020

Answer:

The number is 35.

Step-by-step explanation:

Let the number be x

Twice the number: 2*x = 2x

Twice the number decreased by 20: 2x - 20

2x - 20 = 50

Add 20 to both sides

2x - 20 +20 = 50 + 20

2x = 70

Divide both sides by 2

2x/2 = 70/2

x = 35

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