Respuesta :
Answer:
x = 7/3
Step-by-step explanation:
Step 1: Write equation
6 + 3x = 12x - 15
Step 2: Solve for x
- Subtract 3x on both sides: 6 = 9x - 15
- Add 15 to both sides: 21 = 9x
- Divide both sides by 9: 21/9 = x
- Simplify: 7/3 = x
- Rewrite: x = 7/3
Step 3: Check
Plug in x to verify it's a solution.
6 + 3(7/3) = 12(7/3) - 15
6 + 7 = 28 - 15
13 = 13
Answer:
x = 7/3
Step-by-step explanation:
6 +3x = 12x -15
9x = 21 . . . . . add 15-3x
x = 21/9 . . . . . divide by 9
x = 7/3