What is the solution of the equation "2/5x+4=1/5" ?(1 point)

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
2 hours ago

To solve the equation \(\frac{2}{5}x + 4 = \frac{1}{5}\), follow these steps:

  1. Isolate the term with \(x\): Subtract 4 from both sides of the equation: \[ \frac{2}{5}x = \frac{1}{5} - 4 \]

    To subtract 4, convert 4 to a fraction with a denominator of 5: \[ 4 = \frac{20}{5} \] So the equation becomes: \[ \frac{2}{5}x = \frac{1}{5} - \frac{20}{5} = \frac{1 - 20}{5} = \frac{-19}{5} \]

  2. Solve for \(x\): Now, multiply both sides by the reciprocal of \(\frac{2}{5}\), which is \(\frac{5}{2}\): \[ x = \frac{-19}{5} \cdot \frac{5}{2} \]

    Simplifying this, we get: \[ x = \frac{-19 \cdot 5}{5 \cdot 2} = \frac{-19}{2} \]

So, the solution for the equation \(\frac{2}{5}x + 4 = \frac{1}{5}\) is: \[ \boxed{\frac{-19}{2}} \]