Question

9(5d−4)=−19−7d
100 points for correct answer

Answer 1

d= 0.33

Explanation:

Get rid of the parenthesis first

9(5d-4) = -19 - 7d

45d -36= -19 -7d

Then get the variable to one side of the equation

52d -36= -19 (Add 7d to both sides of the equation to get rid of the -7d)

Then you need to isolate the variable. Do this by getting rid of the 36.

52d = 17

Divide both sides by 52 to get "x" by itself.

d= 17/52

d= 0.33