Jawaban:
c.392
Penjelasan dengan langkah-langkah:
1. a+b+c+d=260x4 jadi a+b+c+d=1040
2. a+16+b+16+c-x+d-x =270 × 4
a+16+b+16+c-x+d-x =1080 maka
a+b+c-x+d-x = 1048
dikali 2
2a+2b+2c-2x+2d-2x = 2096
maka 8 bilangan : a+b+c+d+2a+2b+2c-2x+2d-2x= 3136/8
= 392
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Verified answer
Jawaban:
c.392
Penjelasan dengan langkah-langkah:
1. a+b+c+d=260x4 jadi a+b+c+d=1040
2. a+16+b+16+c-x+d-x =270 × 4
a+16+b+16+c-x+d-x =1080 maka
a+b+c-x+d-x = 1048
dikali 2
2a+2b+2c-2x+2d-2x = 2096
maka 8 bilangan : a+b+c+d+2a+2b+2c-2x+2d-2x= 3136/8
= 392