3 years ago

Please help me with this thx need soon

Mathematics

1 answer:

Helga [31]3 years ago

5 0

Answer:

A) x = 7

Step-by-step explanation:

7x + 1 + 7x + 6 + (180° - 15x) = 180°

14x + 7 + 180° - 15x = 180°

combine like terms:

-x = -7

x = 7

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