Question

Nilai x yang memenuhi persamaan
2/3(x-5) = 1/4x - 6 adalah...

Answer 1

2/3 ( x - 5 ) = 1/4x - 6 ------> kalikan 12 biar pecahan ilang

8 (x - 5 ) = 3x - 72
8x - 40 = 3x - 72
8x - 3x = - 72 + 40
5x = - 32
x = -32/5

Answer 2

2/3x-15 = 1/4x-6 ------> kedua ruas dikali silang,menjadi:
2(4x-6) = 1(3x-15) ------> berlaku sifat distributif
8x-12 = 3x-15
8x-3x = 12-15
5x = -3
x = -3/5