Since the angles are adjacent, their sum is equal to 100°.
Therefore, we have the equation:
∠1 + ∠2 = 100°
Substituting the given measures, we have:
20° + (3x + 15)° = 100°
Simplifying, we get:
3x + 35° = 100°
Now, subtracting 35° from both sides, we have:
3x = 65°
Thus, the equation that can be used to solve for x is:
3x = 65°
Two adjacent angles have a sum of 100°. The angles have measures ∠1 = 20° and ∠2 = (3x + 15)°. What equation can be used to solve for x?
1 answer