solve for x

3x=5+7x

1 answer

To solve for \( x \) in the equation \( 3x = 5 + 7x \), follow these steps:

  1. Subtract \( 7x \) from both sides: \[ 3x - 7x = 5 \]

  2. This simplifies to: \[ -4x = 5 \]

  3. Now, divide both sides by \(-4\): \[ x = \frac{5}{-4} \]

  4. This simplifies to: \[ x = -\frac{5}{4} \]

Thus, the solution is: \[ x = -\frac{5}{4} \]