nilai x adalah,tolong memakai cara ya kak
→ 3x + 35° + 2x - 5° = 180°
→ 3x + 2x = 180° + 5° - 35°
→ 5x = 150°
→ x = 30° (A.)
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(3x + 35)° + (2x - 5)° = 180
5x + 30 = 180°
5x = 180° - 30
5x = 150°
x = 150°/5
x = 30 (A.)
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