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Answer:
Step-by-step explanation:
The 2 angles with x in them are complementary. They add to 90. This is a right triangle.
3x - 14 + 2(3x - 6) = 90 Remove the brackets.
3x - 14 + 6x - 12 = 90 Combine
9x - 26 = 90 Add 26 to both sides.
9x = 116 Divide by 9
9x/9 = 116/9
x = 12.89