With negatives included, no.
You can add a negative with a positive and get a lesser number than you would when subtracting, only if you subtract the negative from the positive, making it become addition.
1 + (-1) = 0, while 1 - (-1) = 2. Some more examples are 3 and -8, 4 and -1.
Hope this helps! :)
4.8 is the number ten times the value in 4.381
2/4 is equivalent to 1/2.
Subtract 4/5 from each side.
You get x=9/5
For future problems like this, use the inverse operations.
Inverse operations: (Addition, subtraction) (Multiply, divide)
Like if it is 5x=25, divide by 5.
x=5
For this x=9/5 though