Question

Solve for x in the diagram below. 200 (3x + 10°

Answer 1

Answer:

$\boxed{x\degree = 20\degree}$

Step-by-step explanation:

Two Angles are Complementary when they add up to 90° (a Right Angle).

$= > x\degree + (3x + 10)\degree = 90\degree \\ \\ = > x\degree + 3x\degree + 10\degree = 90\degree \\ \\ = > 4x\degree + 10\degree = 90\degree \\ \\ = > 4x\degree = 90\degree - 10\degree \\ \\ = > 4x\degree = 80\degree \\ \\ = > x\degree = \frac{80}{4} \degree \\ \\ = > x\degree = 20\degree$

Answer 2

Answer:

x = 20°

Step-by-step explanation:

4x + 10 = 90

4x = 80

x = 20