niamhelliewood
niamhelliewood niamhelliewood
  • 15-11-2020
  • Mathematics
contestada

David is x years old
Martin is 3 years older than David
The sum of their ages is 37
Write an equation based on this
information

Respuesta :

yrajkumari
yrajkumari yrajkumari
  • 15-11-2020
X+3=37

Hope this helps!
Answer Link
ibadullahqureshi01
ibadullahqureshi01 ibadullahqureshi01
  • 15-11-2020

Answer:

x+(x+3)=37

Step-by-step explanation:

'x' is david's age, and since Martin is 3 yrs older then david's age, in this case 'x', we can write martin's age as 'x+3'. And since their ages combine to 37, hence the equation x+(x+3)=37

SOLVED EQUATION (remember you have to isolate the unknown)

x+(x+3)=37

x+x+3=37

2x+3=37

2x+3-3=37-3

2x=34

2x/2=34/2

x=17

17 yrs is David's age

x+3 ---- 17+3=20

20 yrs is Martin's age

Answer Link

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