Question

Persamaan linear satu variabel
1. 3t+6=5t+7
2. 5p-1=4
3. -4z+3=2z+15
4. 2q-3=11
5. 5s-4=3
Mohon Jawabannya:)

Answer 1

1. 3t +6 = 5t +7
   3t -5t = 7 -6
     -2t = 1
   t = -1/2

2. 5p -1 = 4
   5p = 4 +1
   5p = 5
   p = 1

3. -4z +3 = 2z +15
   -4z -2z = 15 -3
   -6z = 12
   z = -2

4. 2q -1 = 11
   2q = 11 +1
   2q = 12
   q = 6

5. 5s -4 = 3
   5s = 3 +4
   5s = 7
   s = 7/5
   s = 1 2/5

Itu jawabannya.

Answer 2

A) 3t + 6 = 5t + 7
    3t - 3t + 6 = 5t-3t + 7
    6 = 2t + 7
    6-7 = 2t + 7 - 7
    -1 = 2t
    -1/2 = t

b) 5p - 1 = 4
    5p - 1 + 1 = 4 + 1
    5p = 5
      p = 5/5 = 1

c) -4z + 3 = 2z + 15
    -4z - 2z + 3 = 2z -2z + 15
    -6z + 3 = 15
    -6z + 3 -3 = 15-3
    -6z = 12
     6z = -12
       z = -2

d)2q - 3 = 11
   2q - 3 + 3 = 11 + 3
   2q = 14
     q = 14/2 = 7

e)5s - 4 = 3
   5s -4+4 = 3+4
   5s = 7
     s = 7/5
      s = 1 2/5