Answer:
x = 12
Explanation:
Since we are given a right angle, we can say that:
sum of all angles = 90 degrees
x + 42 + 3x = 90
4x = 48
So, x is equal to 12 degrees!
Hope this helps))) ^‿^
x=12
90 = x + 42 + 3x
48 = x + 3x
48 = 4x
12 = x
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