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andrey2020 [161]
4 years ago
15

Please help me with this question

Mathematics
2 answers:
bezimeni [28]4 years ago
8 0
3x+21
3*x n 3*7=21 is 3x+21
taurus [48]4 years ago
6 0
3x+21 is a simplified version of this algebraic expression
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