Answer:
Hmm since it says explain how, you can simply say , Determining the volume of the block would result in me using the method , " length x width x height. " or to add on to it you can also say, By using this method I would multiply the grams and mL together to get the volume. (Im not sure if this helps or not let me know!!)
Step-by-step explanation:
Basically volume = l x w x h , so I just put it in a sentence.
3x - 3 = -18
add 3 to each side:
3x = -15
divide each side by 3
x = -15/3
x = -5