Answer:
Final answer is x=23.
Step-by-step explanation:
Given that m∠A = 60°, m∠B = (3x − 2)°, m∠C = (2x + 7)°
We know that sum of all three angles of a triangle equals 180 degree.
So we can write equation:
m∠A + m∠B + m∠C = 180°
60° +(3x − 2)° + (2x + 7)° = 180°
60 +3x − 2 + 2x + 7 = 180
67 +5x − 2 = 180
65 +5x = 180
5x = 180 - 65
5x = 115
[tex]x=\frac{115}{5}[/tex]
x=23
Hence final answer is x=23.
