Question

If 10 + x is 5 more than 10, what is the value of 2x?
A. -5
B. 5
C. 10
D. 25

Answer 1

Hint: In this question use the given information to make the equation and use 10 + x = 10 + 5, using this information will help you to approach the solution to the problem.

Complete step by step solution:
According to the given information it is given that 10 + x is 5 more than 10
Thus the equation will be 10 + x = 5 + 10
$ \Rightarrow $x = 15 – 10
$ \Rightarrow $x = 5
To find the value of 2x
Substituting the value of x in 2x to find its value
2x = 2 $ \times $ 5
$ \Rightarrow $2x = 10
So the value of 2x is equal to 10
Hence option C is the correct option.

Note: In the above question was based on the concept of linear equation in one variable which can be explained as the equation which contains only one variable the general representation of linear equation in one variable is given as ax + b = 0 here a and b are the integers and x is the variable in the equation which means that its value is unknown, these equations have only one solution there are more types of equations such as linear equation of 2 variables which have only 2 dissimilarities than linear equation in 1 variable that are linear equations with 2 variables consist of 2 variables and it consists of more than 1 solution.