Answer:
x = -3
Explanation:
Step 1: Write equation
12 = 6 - 5x + 3x
Step 2: Solve for x
- Combine like terms: 12 = 6 - 2x
- Subtract 6 on both sides: 6 = -2x
- Divide -2 on both sides: -3 = x
- Rewrite: x = -3
Step 3: Check
Plug in x to verify it's a solution.
- Substitute: 12 = 6 - 5(-3) + 3(-3)
- Multiply: 12 = 6 + 15 - 9
- Add: 12 = 21 - 9
- Subtract: 12 = 12