What is the exact answer for 4x-x equals 2x plus x?

Answer 1

6

Answer 2

First of all, while we get ready to find the 'answer', we're not so sure

that you understand what the question is.

Whenever there's an equation with an unknown in it ... like the given equation ...

the question is usually: "What value of 'x' makes the equation a true statement ?"

In this particular equation, the exact answer is: It doesn't matter.

Every value for 'x' makes the equation a true statement.

Here's why:

4x - x = 2x + x

Divide both sides of the equation by 'x':

4 - 1 = 2 + 1

Perform the indicated operation on each side:

3 = 3

That statement is true regardless of what 'x' is. So every value of 'x'

is a solution of the original equation.