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Maria thinks of a number double it and add 5 answer is 21 write as an equation in X and solve it to find Maria's number​

Respuesta :

Sashakay

Answer:

The number is 8

Step-by-step explanation:

2x +5 =21

2x= 21-5

2x=16

2x/2=16/2

x=8

To check

8×2=16

16+5=21
Answer : Maria’s number is 8

2x + 5= 21

2x = 21 -5 ( taking whole number to other side of =)

2x = 16

X= 16/2

X= 8

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