Respuesta :
Answer:
x = -4
General Formulas and Concepts:
Pre-Algebra
- Order of Operations: BPEMDAS
- Equality Properties
Step-by-step explanation:
Step 1: Define equation
x + 13 = 9
Step 2: Solve for x
- Subtract 13 on both sides: x = -4
Step 3: Check
Plug in x into the original equation to verify it's a solution.
- Substitute in x: -4 + 13 = 9
- Add: 9 = 9
Here we see that 9 does indeed equal 9.
∴ x = -4 is a solution of the equation.
Answer:
x=-4
Step-by-step explanation:
So when solving a one-step algebraic equation you need to remember what you do to one side you have to do to the other side. In the problem x + 13 = 9 you need to subtract 13 from both sides to isolate x. So your problem should look like x = 9 - 13. Now all you have to do is solve 9 - 13 which is -4. So x = -4.
I hope this helped.