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Solve for x. 3x - 1 = 20 -7 - 7

User MatheusOl
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1 Answer

3 votes
3x - 1 = 20 - 7 - 7
3x -1 = 20
3x - 1 + 1 = 20 + 1
3x = 21
3x/3 = 21/3
x = 7
User Victor Cui
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