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Sagot :
Answer:
12
Step-by-step explanation:
The diagram shows a right angle, therefore (6x-2) + 20 = 90.
Find x
(6x - 2) + 20 = 90
6x - 2 = 70
6x = 72
x = 12
Confirmation
[6(12) - 2] + 20 = 90
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