To simplify the right side of the equation, we will follow similar steps as those used for the left side.
Given expression on the right side:
[tex]\( -6.4m + 4(0.5m - 0.8) \)[/tex]
1. Distribute the 4:
[tex]\( 4(0.5m - 0.8) = 4 \cdot 0.5m - 4 \cdot 0.8 \)[/tex]
[tex]\( = 2m - 3.2 \)[/tex]
2. Combine like terms with [tex]\( -6.4m \)[/tex]:
[tex]\( -6.4m + 2m - 3.2 \)[/tex]
[tex]\( = -4.4m - 3.2 \)[/tex]
So, the right side simplifies to:
[tex]\[ -4.4m - 3.2 \][/tex]
Therefore, the correct simplified expression is:
[tex]\[ -4.4m - 3.2 \][/tex]
Among the given options, the correct one is:
[tex]\[ -4.4m - 3.2 \][/tex]
