What is the answer for 2x+1=9

Answer: X = 4

Step-by-step explanation: To solve for x in the equation you see here, our goal is to get x by itself.

Our first step will be to isolate the term containing x which in this case is 2x. To isolate 2x, we have to get rid of the + 1 by subtracting 1 from both sides of the equation.

On the left, the 1's cancel each other out and we are left with 2x. On the right side of the equation, 9 - 1 simplifies to 8.

Now we are left with a two step equation. To get x by itself, notice that x is being multiplied by 2 so we can divide by 2 on the left side of the equation. Since we divided by 2 on the left side, we must also divide by 2 on the right side.

On the left, the 2's cancel and we are left with x. On the right, 8 : 2 simplifies to 4 so we are left with X = 4.

To check your answer, feel free to plug a 4 back in for x to check your work.