Abox contains 144 marbles, which are either red or blue. if there are 3 times as many red marbles as there are blue marbles in the box, how many red marbles are in the box

Given:
X: The blue marbles.
3X: The red marbles.
A box contains 144 marbles.
SOLVING:
X + 3X = 144
4X = 144
X =
X = 36 ===> The blue marbles.

If there are 3 times as many red marbles as there are blue marbles:
3(36) = 108 ===> The red marbles. SOLUTION

TESTING:


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