3 years ago

I'd appreciate it if anyone could help out as soon as possible!

Mathematics

1 answer:

andriy [413]3 years ago

5 0

Answer:

(3x + 14) + (8x - 21) = 180º

Step-by-step explanation:

In order for the two lines to be parallel, the marked angles must be supplementary: their sum must be 180°.

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