Selesaikan persamaan linier berikut: A. 2(a+5)-4=3-a B. 20(3x+1)=-50(5-x)

a ) 2 (a + 5) - 4 = 3 - a
2a + 10 - 4 = 3 - a
2a + 6 = 3 - a
2a + a = 3 - 6
3a = -3
a = -3/3
a = -1

b ) 20 (3x + 1) = -50 (5 - x)
60x + 20 = -250 + 50x
60x - 50x = -250 - 20
10x = -270
x = -270/10
x = -27

Maaf bila ada kesalahan

a. 2(a + 5) - 4 = 3 - a
→ 2a + 10 - 4 = 3 - a
→ 2a + 6 = 3 - a
→ 2a + a = 3 - 6
→ 3a = -3
→ a = -3/3 = -1

b. 20(3x + 1) = -50(5 - x)
→ 60x + 20 = -250 + 50x
→ 60x - 50x = -250 - 20
→ 10x = -270
→ x = -270/10 = -27

maaf kalau salah
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