Final answer:
To solve the equation x + 2 = -x + 7, we combine like terms and then divide by the coefficient of x to find that x = 2.5, which is not listed in the provided options.
Step-by-step explanation:
To solve the equation x + 2 = -x + 7, you need to isolate the variable x on one side of the equation. Here is the step-by-step solution:
- Add x to both sides of the equation to get all the x terms on one side: 2x + 2 = 7.
- Subtract 2 from both sides of the equation to solve for x: 2x = 5.
- Divide both sides by 2 to find the value of x: x = 5 / 2 or x = 2.5.
So none of the options given (a, b, c, d) are correct; the value of x is 2.5.