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blagie [28]
3 years ago
8

∠1 ​ and ∠2 are supplementary.

Mathematics
1 answer:
seropon [69]3 years ago
5 0
Supplementary means the 2 angles add up to 180 so...

124+(2x+4)=180

124+2x+4=180

124+2x+4-4=180-4

124+2x=176

124-124+2x=176-124

2x=52

2x/2=52/2

x=26
plug in and check

124+2x+4=180

124+2 (26)+4=180

124+52+4=180

176+4=180

180=180


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8 0
3 years ago
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Read 2 more answers
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