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28 votes
28 votes
Subtract the extra marbles from both sides

2x+3-3=7-3
2x=4

User Jahred
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1 Answer

20 votes
20 votes

actually = zero because 7-3 you can't subtract nothing from 3 because 7 is a higher number and even if you subtract it it will = 8 because 4x2= 8

User Hoxworth
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