Question

bisa bantu please no ngawur
pake cara
no 14&15​

Answer 1

Jawaban:

14. A. 28⁰ dan 34⁰√

15. 3y + 2 x + y + x =180⁰

4y +3 x =180

ELIMINASI

3y+ x = 85 ×3

4y+3x= 180 ×1

9y +3x =225

4y+3x=180

____________ -

5y=75

y=75/5=15

3(15)+x=85

x=85-45

x=40

40⁰ dan 15⁰(c)