X- 2 = -44 + 5 not sure how to do this

                                         -x - 2  =  -44 + 5

That mess on the right side is just  (5 - 44), which is  -39 .
So now the equation is
                                          -x - 2   =  -39

Add  2  to each side:          -x        =  -37

Multiply each side by  -1 :   x        =   37      

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post