tolong bantu jawab ya.....

K = 2p + 2l
100 = 2 (3x+8) + 2(2x+7)
100 = 6x+16+4x+14
100 = 10x + 30
10x = 100 - 30
X = 70/10
X = 7
p = 3x+8
= 3.7+8
= 21+8
=29
l =2x+7
=2.7+7
=14+7
=21
Luas = p.l
=29.21
=609 m²

Keliling kebun =2p + 2l
100 = 2(3x+8) +2(2x+7)
100= (6x + 16)+(4x+14)
100= 10x+30
100-30=10x
70 =10x
70/10 =x
7 = x
Panjang = 3x + 8
=3(7)+8
=21 + 8
=29 m
Lebar= 2x+7
=2(7)+7
=14+7
=21 m
Luas kebun = p x l
= 29 x 21
=609 m²