Arithmetic 8.4-2
8.4 - 2 = 6.4
5x + 15x =
6.4
To find the value of the arithmetic expression 8.4 - 2, you simply subtract 2 from 8.4.
So, 8.4 - 2 = 6.4.
This can be done by subtracting 2 from the whole number part (8) and subtracting 2 from the decimal part (0.4).
8 - 2 = 6 (whole numbers)
0.4 - 0 = 0.4 (decimals)
Therefore, the result is 6.4.