Question

∠ABC and ∠DBC are complementary angles. If m∠ABC=6x+13 and m∠DBC=4x−3 what is the value of x?

Answer 1

x = 8

Explanation:

complementary means add to 90

6x + 13 + 4x - 3 = 90

10x + 10 = 90

10x = 80

x = 8