Question

3 (х + 6) = х + 2 (х + 9)

Answer 1

Ответ:

3 (х + 6) = х + 2 (х + 9)

3х+18=х+2х+18

3х-х-2х=18-18

х=0

Answer 2

To solve the equation $3(x + 6) = x + 2(x + 9)$, we need to find the value of $x$ that makes the equation true. Let's solve it step by step:

Step 1: Distribute the terms inside the parentheses. $3x + 18 = x + 2x + 18$

Step 2: Combine like terms on the right side of the equation. $3x + 18 = 3x + 18$

Now, we can see that the variable $x$ appears on both sides of the equation, and the coefficients of $x$ are the same on both sides. Therefore, the equation is an identity, meaning it holds true for all values of $x$. In other words, any value of $x$ will satisfy this equation.

So, the solution to the equation is: $x \in \mathbb{R}$ (all real numbers).