Answer:
x=8
Explanation:
4x+5x+5+103=180
9x+108=180
9x=180-108
9x=72
x=72÷9
Answer: 8
Step-by-step explanation:
The sum of the interior angles in a triangle in 180.
So we can add up all the values and set it equal to 180 to find x.
4x + (5x + 5) + 103 = 180
9x + 108 = 180
9x = 72
x = 8
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