Question

X-18
х
What do I do plz help

Answer 1

x = 54

Explanation:

The two angles added together equal 90 degrees because they are complementary angles.

x - 18 + x = 90

Combine like terms

2x - 18 = 90

add 18 to both sides

2x = 108

Divide each side by 2

x = 54

Fill in for x

54 - 18 + 54 = 90

36 + 54 = 90

90 = 90

This proves that the answer is true.

Answer 2

x = 54°

Explanation:

90° = 2x-18°

90° + 18° = 2x

108° = 2x

x = 54°