Question

Brpa besar sudut & nilai X ?​

Answer 1

1.

A)

2x+10 = 40

x = (40-10)/2

x = 15

B)

40+8x-5 = 180

8x = 180-40+5

8x = 145

x = 145/8

x = 18,125

Sudut ATB = 8 × 18,125 - 5

Sudut ATB = 140°

2.

3x+20 = 6x - 10

3x-6x = -10-20

-3x = -30

-x = -30/3

x = 10