Answer:
X= 16
Explanation:
right angle = 90°
And we have 33° already
90 + 33 = 123
Triangle is 180
180 - 123 = 57
Write in an equation
57 = 3x + 9
57- 9 = 48
48= 3x
48/ 3 = 16
16
Because this is a right triangle the two angles besides the right angle add up to 90°
33 + 3x + 9 = 90
Combine like terms
42 + 3x = 90
Isolate the x ( subtract 42 from both sides)
3x = 48
Divide both sides by 3
x = 16
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