Matematika Sekolah Menengah Atas Jika : A + A + A = 15B + B + A = 9 C + B + B = 11 tentukan nilai dari :A × B + C = .... ​

jodykohlerulv – March 07, 2023

Jika :
A + A + A = 15
B + B + A = 9
C + B + B = 11
tentukan nilai dari :
A × B + C = .... ​

A + A + A = 15

2A + A = 15

3A = 15

A = 15/3

A = 5

--

B + B + A = 9

2B + A = 9

2B + 5 = 9

2B = 9 - 5

2B = 4

B = 4/2

B = 2

--

C + B + B = 11

C + 2 + 2 = 11

C + 4 = 11

C = 11 - 4

C = 7

Nilai A × B + C

• = 5 × 2 + 7
• = (5 + 5) + 7
• = 10 + 7
• = 17

[answer.2.content]