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

Answer= 7

Explanation:

the unknown number being, x, .

i think of a number ( x), double it, ( 2× x)= 2x, and add 11 to be ( 2x + 11), i get 25.

So, the equation will be:

2x + 11 = 25.

to solve it, take (+11) to the equals side and it will change to (-11), or in other words, subtract 11 on both sides.

the equation will thus remain to be:

2x = 25-11

2x = 14.................Divide both sides by 2 to remain with x

so, X = 7.