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Paha777 [63]
3 years ago
5

3x−x+3−9=6 i cant solve this ​

Mathematics
1 answer:
Semmy [17]3 years ago
3 0

Answer:

3x - x + 3 - 9 = 6

3x - x + 3 = 6 +9

2x +3 = 15

2x = 15 - 3

2x = 12

x= 12/2

x= 6

Rules - When the side changes , sign changes .for ex (-9) on changing side (from left to right ) becomes plus 9

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