Question

1. (\frac{m}{2.8} - 4.9 = -7.11)

Explanation:

Step1: Add 4.9 to both sides

$\frac{m}{2.8}-4.9 + 4.9=-7.11 + 4.9$
Simplify to get $\frac{m}{2.8}=-2.21$

Step2: Multiply both sides by 2.8

$\frac{m}{2.8}\times2.8=-2.21\times2.8$
Calculate the right - hand side: $-2.21\times2.8=-6.188$

Answer:

$m = - 6.188$