Matematika

Pertanyaan

1. 7p - 14 = 6p-8
2. 6x + 3/7 = 5x + 5/7
3. 4( x+6)=3 (x+2)
4. 3(2x+7) = 5 (x - 4)
5. 2(5×6) = 3 (3×7)
6. (3/4y + 3/4) = 5 (y+4/5)
7. 3(x+2)=2(3x=4)
semuanya yaa pls bgt buat besokk

2 Jawaban

  • 1. P=6
    2.X=2/7
    3. 4x+24=3x+6
    X=-18
    4.6x+21=5x-20
    X=-41
    5..........
    6.(3/4y+3/4)=5y+4
    3/4y-5y=4-3/4
    - 17/4y=13/4
    y=13/4/-17/4
    Y=52/68
    7. 3x+6=2(x=4/3)
    3x+6=2(4/3)
    3x=8/3-6
    3x=-10/3
    x=-10/9
  • 1. 7p - 14 = 6p-8 
         7p-6p = -8+14
          p= 6
    2. 6x + 3/7 = 5x + 5/7 
     6x-5x = 5/7 - 3/7
    x = 2/7
    3. 4( x+6)=3 (x+2)
     4x + 24 = 3x + 6
    4x - 3x = 6-24
    x = -18
    4. 3(2x+7) = 5 (x - 4)
     6x + 21 = 5x-20
    6x-5x = -20-21
    x = -41
    5. 2(5×6) = 3 (3×7)
     10 x 12 = 9 x 21
    120 = 189 
    6. (3/4y + 3/4) = 5 (y+4/5)
    3/4 y + 3/4 = 5y + 4
    3/4 y-5y = 4-3/4
    3/4 - 20/4 = 16/4 - 3/4
    -17/4 y = 13/4
    7. 3(x+2)=2(3x=4)
    3x + 6 = 6x + 8
    3x-6x = 8-6
    -3x = 2
    -x = 2/3
    x= -2/3

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