I think this is a least common multiple question
So they would all arrive on day 504, (which probably is a few years)
8 = 2 × 2 × 2
18 = 2 × 3 × 3
21 = 3 × 7
I might be right I might be wrong, IM not positively sure but yknow
Answer:
2.21
Step-by-step explanation:
To solve it you have to distribute (multiply) the 4 to the x and the 2.Then you would have to subtract 8 by both sides and which it would cancel on the left side, then after you divide 4 by both sides and then u get you answer.
According to the fundamental theory of algebra, the number of solutions of an equation equals the degree of that equation.
This is a fourth degree equation, so there are 4 solutions.