tentukan penyelesaian dan persamaan linear berikut! 1. 2(5-x)=4(2x-5) 2. 3(4x-5)=2(3x+8) 3. 2x-5 =7 4. 3(x-1)=x+5 -1/2 5. 1/2x-1/4 = 5/4
Matematika
triayu333
Pertanyaan
tentukan penyelesaian dan persamaan linear berikut!
1. 2(5-x)=4(2x-5)
2. 3(4x-5)=2(3x+8)
3. 2x-5 =7
4. 3(x-1)=x+5 -1/2
5. 1/2x-1/4 = 5/4
1. 2(5-x)=4(2x-5)
2. 3(4x-5)=2(3x+8)
3. 2x-5 =7
4. 3(x-1)=x+5 -1/2
5. 1/2x-1/4 = 5/4
1 Jawaban
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1. Jawaban alenasyla
1. 2(5-x)=4(2x-5)
10 - 2x = 8x - 20
10+20 = 8x + 2x
30 = 10 x
30/10 = x
3 = x
2. 3(4x-5)=2(3x+8)
12x - 15 = 6x + 16
12x - 6x = 16 - 15
7x = 1
7/1 = x
7 = x
3. 2x-5 =7
2x = 7 + 5
2x = 12
x = 12/2
x = 6
maaf sy hanya bisa ini saja smg membantu...