Question

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Answer 1

2y + 15 = 3y + 5

3y - 2y = 15 - 5

y = 10

3x + 40 = 5x - 30

5x - 3x = 40 + 30

2x = 70

x = 70 : 2

x = 10

A = 2y + 15

20 + 15 = 35

B= 5x - 30

175 - 30 = 145

semoga membantu.

Answer 2

A)

3x + 40° = 5x - 30°

3x - 5x = -30° - 40°

-2x = -70°

x = -70°/-2

x = 35°

b)

2y + 15° = 3y + 5°

2y - 3y = 5° - 15°

-y = -10°

y = 10°

c)

• <A = 2y + 15°

= 2(10°) + 15°

= 20° + 15°

= 35°

• <B = 5x - 30°

= 5(35°) - 30°

= 175° - 30°

= 145°

semoga membantu