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allochka39001 [22]
3 years ago
14

How do I find the value of x for which line a is parallel to line b?

Mathematics
1 answer:
notka56 [123]3 years ago
7 0

Answer:

x = 20

Step-by-step explanation:

3x + 6x = 180, if you make them supplementary then they will be parallel

9x = 180

x = 20

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