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andrew-mc [135]
3 years ago
10

Solve for x. Make sure to show all your work.

Mathematics
2 answers:
WITCHER [35]3 years ago
7 0

Answer:

x=18

Step-by-step explanation:

(6x+3)+(3x+15)=180

(6x+3x)+(3+15)=180

9x+18=180

    -18  -18

9x=162

162/9

x=18

Arisa [49]3 years ago
6 0
These two angles should sum to 180 since they form a line. So 6x+3+3x+15=180. 9x=162. x=18.
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