a. 2x + 5y =
b. 3x - 4y =
c. x² -y =
pake cra kk bsk kumpul
b. 3x - 4y =
c. x² -y =
pake cra kk bsk kumpul
JWB
2x + 5y
mencari nilai X
= 3x = 60°
= x = 60° : 3
= X 20°
MENCARI NILAI Y
6y = 120°
y = 120° : 6
= Y 20°
substitusikan X= 20° dan y= 20° kedalam
persamaan 2x + 5y
2x+5y
2(20) + 5(20) = 40 + 100
40 + 100 = 140
jadi nilai dari 2x + 5y = 140°
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