Please help! Answers: 15 70 55 105

1 answer:

7 0

Equation:
$3x + 10 = (180 - (5x - 5) ) \div 2 \\ ... \\ x = 15 \\$
3x+10 = 45+10 = 55
The answer is 55 because this is a isosceles triangle.

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