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algol13
2 years ago
11

3x + 1 = x + 19 x = ?

Mathematics
1 answer:
Alekssandra [29.7K]2 years ago
8 0
3x+1=x+19
     -1      -1
3x=x+18
-x  -x
2x=18
/2   /2
x=9
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