Short Answer 
To solve the equation y = 4/x + ‚Äöaox + 0.2 – 5x for x = 4/5, first substitute the value and calculate each term separately. Finally, combine the results to find y = 2.094.
Step 1: Substitute the Value of x
Begin by substituting the given value of x = 4/5 into the equation y = 4/x + ‚Äöaox + 0.2 – 5x. This step is crucial as it allows you to replace the variable with the specific number, making it easier to perform calculations.
Step 2: Calculate Each Term
Next, calculate each term in the equation separately to avoid confusion:
- First term: y = 4/(4/5) equals 5.
- Second term: ‚Äöao(4/5) calculates to approximately 0.894.
- Third term: 0.2 remains unchanged.
- Fourth term: -5*(4/5) results in -4.
Step 3: Combine the Results
After calculating each term, the final step involves adding them together to find the value of y. Combine the results obtained in the previous step: y = 5 + 0.894 + 0.2 – 4, which simplifies to y = 2.094. This final value represents the solution to the equation.