2 years ago

Help no links please u^u

Mathematics

1 answer:

Veseljchak [2.6K]2 years ago

3 0

Answer:

∠A= 80°

Step-by-step explanation:

if they are supplementary then put them equal to 180

7x + 3 +7x + 23 = 180

14x + 26 = 180

14x = 154

x= 11

now plug in

7(11)+3

77+3= 80

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