Laarilah nilai xsebagai b20 + 5x = 502x + 3x = 20 – 5x
•20+5x=50
5x=50-20
5x=30
x=30/5
x=6
•2x+3x=20-5x
2x+3x+5x=20
10x=20
x=20/10
x=2
Maaf ya kalau salah
Jawab:
-6
-1,5
Penjelasan dengan langkah-langkah:
1.
20 + 5× = 50
5x = 50 – 20
5x × 1/5 = 30 × 1/5
× = 6
2.
2x + 3x = 20 – 5x
2x + 3x ÷ x = 20 – 5x ÷ x
2x + 3 = 20 – 5
2x + 3 ÷ 3 = 15 ÷ 3
2x = 3
x = 3 ÷ 2
x = 1,5