Question

Pakai cara
Himpunan penyelesaian dari
2(3x + 5) -3( 7x - 3)= x +7 adalah

Answer 1

2 (3x + 5) - 3(7x -3) = x + 7
  6x + 10 - 21x + 9  = x + 7
          6x - 21x - x   = 7 - 10 - 9
                       -16x = -12
                           x = -12/-16
                           x = 3/4

Answer 2

2(3x + 5) - 3(7x - 3) = x + 7

2(3x) + 2(5) - ((3)(7x) + (3)(-3)) = x + 7
6x + 10 - (21x - 9) = x + 7
6x + 10 - 21x + 9 = x + 7
- 15x + 19 = x + 7
-15x - x = 7 - 19
-16x = 12
16x = -12
x = -12/16
x = -3/4