Help, I need to figure this out.

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

Use a transformation to solve the equation. w/4 = 8 can you also leave a detailed explanation on how this equation = 32

What is the interquartile range (iqr) of the data set represented by this box plot?