90 marbles were stored in two boxes, box A and box B. After 5 marbles were moved from box A to box B, both boxes had the same number of marbles. How many numbers were in box A orginally?

Hope this helps!

Step-by-step explanation:

90 marbles

Box A 50

Box B 40

So if 5 from Box A were moved to Box B they would each have 45 marbles!

45+45=90

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

the barter