Question

I think of a number double it and add eleven. i get 25

a)use the statement above form an equation use the letter x for the uknown number
b) solve the equation

Answer 1

see explanation

Explanation:

(a)

let the number be x then doubling it is 2x and adding 11 is

2x + 11

(b)

the statement is equal to 25 , then

2x + 11 = 25 ( subtract 11 from both sides )

2x = 14 ( divide both sides by 2 )

x = 7