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10-2x = 8x-20 12x-15 = 6x+16
10+20 = 8x+2x 12x-6x = 15+16
30 = 10x 6x = 31
30/10 = x x = 31/6
3 = x x = 5 1/6 = 5,16
maaf klo salah yaa
10 - 2x = 8x - 20
-2x - 8x = -20 - 10 HP = {3}
-10x = -30
x = -30 ÷ -10
x = 3
b) 3(4x-5) = 2(3x+8)
12x - 15 = 6x +16
12x - 6x = 16 + 15 HP = {5 1/6}
6x = 31
x = 31 ÷ 6
x = 5 1/6
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*Maaf kalo salah.