Answer:
\(m=-\frac{1}{2}\)
Step-by-step explanation:
We are given that an equation
\(-2m-5m-8=3+(-7)+m\)
We have to find an equation which is equivalent to given equation
Combine like terms
\(-7m-8=-4+m\)
Subtraction property of equality
\(-7m-m-8=-4\)
Combine like terms
\(-8m-8=-4\)
\(-8m=-4+8=4\)
\(m=\frac{4}{-8}=-\frac{1}{2}\)
Hence, \(m=-\frac{1}{2}\)