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jenyasd209 [6]
3 years ago
11

Help pleasesolve for x​

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
5 0

Answer:

x = 19

Step-by-step explanation:

The 3 angles form a straight line and sum to 180°, that is

5x + 4 + x - 2 + 3x + 7 = 180

9x + 9 = 180 ( subtract 9 from both sides )

9x = 171 ( divide both sides by 9 )

x = 19

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