shayrichnaty shayrichnaty

11-10-2020
Mathematics

contestada

Twice the sum of a number and 9 is 30

Translate the statement into a mathematical equation & solve

Respuesta :

Thelondonbrain Thelondonbrain

11-10-2020

Answer:

2x+9 is the equation

x = 10.5

Step-by-step explanation:

2x + 9 = 30

2x = 30 - 9 = 21

x = 21 ÷ 2 = 10.5

Hope this helps!

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