A + A = 10B + B = 12C – A = 10D + B = 8Soal:B + C – A × D = …​

A + A = 10

5 + 5 = 10

A = 5

B + B = 12

6 + 6 = 12

B = 6

C – A = 10

C – 5 = 10

15 – 5 = 10

C = 15

D + B = 8

D + 6 = 8

2 + 6 = 8

D = 2

Maka

B + C – A × D

= 6 + 15 – 5 × 2

= 6 + 15 – 10

= 21 – 10

= 11

ALJABAR

A + A = 10

2A = 10

A = 10/2

A = 5

B + B = 12

2B = 12

B = 12/2

B = 6

C – A = 10

C – 5 = 10

C = 10 + 5

C = 15

D + B = 8

D + 6 = 8

D = 8 – 6

D = 2

Soal:

B + C – A × D

6 + 15 – 5 × 2

6 + 15 – 10

21 – 10

= 11