Final answer:
A multi-step equation that equals 9 is 2x + 3 = 9. By isolating x and solving for x, we find that x equals to 3. The result can be checked by substituting 'x' into the original equation to affirm it equals to 9.
Step-by-step explanation:
A multi-step equation is an algebraic equation that requires multiple steps to solve. For example, consider the equation 2x + 3 = 9. Below is the step by step explanation on how to solve this equation to equal 9:
- Firstly, commence by isolating the terms with the unknown variable on one side of the equation. Here, we subtract 3 from both sides of the equation to keep the equation balanced. This results into 2x = 9 - 3.
- Calculate the value of the right side of the equation, which gives 2x = 6.
- Next, we want to solve for 'x'. As 'x' is currently multiplied by 2, we'll divide both sides of the equation by 2. This gives us x = 6/2.
- Finally, perform the division to find x = 3
Always remember to check the answer by substituting 'x' into the original equation to make sure it equals to 9. In this case, 2*3 + 3 does indeed equal 9, which confirms that our solution is correct.
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