Question

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Answer 1

Answer:

angle Q = 180-130 = 50

50 + (4x+15) + (5x-2) = 180

(4x+15) + (5x-2) = 180 - 50

4x + 15 + 5x - 2 = 130

9x + 13 = 130

9x = 117

x = 117/9 => x = 13

angle R = ((4×13) + 15) => 52+15 => 67

Answer 2

Step-by-step explanation:

angle Q = 180-130 = 50 .......................angle in Linear pair

50+ (4x+15) + (5x-2) = 180........................sum of measure of angles of triangle.

(4x+15) + (5x-2) = 180-50

4x + 15 + 5x - 2 = 130

9x + 13 = 130

9x = 117

x = 117/9

x = 13

put x= 13 in given equation

angle R = (4x13+15)

=> 52+15

=> 67