Answer:
x = 4
General Formulas and Concepts:
Pre-Algebra
- Order of Operations: BPEMDAS
- Equality Properties
Explanation:
Step 1: Define
2.4x + 4.6x = 28
Step 2: Solve for x
- Combine like terms (x): 7x = 28
- Divide 7 on both sides: x = 4
Step 3: Check
Plug in x to verify it's a solution.
- Substitute in x: 2.4(4) + 4.6(4) = 28
- Multiply: 9.6+ 18.4= 28
- Add: 28 = 28
Here we see that 28 does indeed equal 28.
∴ x = 4 is a solution of the equation.