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How I got the equation:

After Jake gave Calvin 4 marbles, Calvin and twice the number of marbles as Calvin. So that means if you wanna equate Calvin's marbles to Jake's marbles, Jake has to multiply his marble count by 2 for it to be equal to Calvin's

After Jake gave Calvin 4 marbles, Calvin and twice the number of marbles as Calvin. So that means if you wanna equate Calvin's marbles to Jake's marbles, Jake has to multiply his marble count by 2 for it to be equal to Calvin's

Date Posted:
4 days ago

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Hi Vivi, I had uploaded a similar question on YouTube “ ezmath/primary/model (at first/after-basic) #2a2 “ you can learn from there to find the answer.

Date Posted:
4 days ago