Answer: there are eight blocks hidden in the cup.
Explanation:
seeing that we don’t know how many blox are in the cup The cup would be a variable in this situation.
x + 4 = 12 cubes
to find your answer you would’ve solve for X, a.k.a. the cup.
x + 4 = 12 cubes
first you would do the inverse operation of addition so instead of adding four you subtract four from four, so that it cancels out. Whatever you do to one side you have to do to the other side so you would have to subtract 4 from The previous 12 cubes.
X = 12 - 4
and your final answer would be 8 cubes
x = 8
there are eight blocks/cubes hidden in the cup