Jawaban:
80+3a+7a=180
10a=180=80
a=100/10=10
Jawab:
A. 10
Penjelasan dengan langkah-langkah:
1. 3a + 7a + 80 = 180
10a + 80 = 180
10a = 100
a = 10
2. A : B = 3 : 2
3x + 2x = 90
5x = 90
x = 90/5 = 18
2 . 18 = 36
A. 36
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Jawaban:
80+3a+7a=180
10a=180=80
a=100/10=10
Jawab:
A. 10
Penjelasan dengan langkah-langkah:
1. 3a + 7a + 80 = 180
10a + 80 = 180
10a = 100
a = 10
A. 10
2. A : B = 3 : 2
3x + 2x = 90
5x = 90
x = 90/5 = 18
2 . 18 = 36
A. 36