Question

Tolong bantu ya aq kesusahan nihhh

Answer 1

Nomor 1 :
1/2  y - 5y/3 = 1/4   .............kedua ruas dikali 12
6y - 20y  = 3
-14y  = 3
     y   = -3/14

nomor 2 :
1/3 (x-2) - 1/4 (x-2) = 1   .............kedua ruas dikali 12
4(x-2) - 3(x-2) = 12
4x - 8 - 3x + 6 = 12
x = 12 + 8 - 6
x = 14

nomor 3
(2x-1)/6 - (3x-5)/4 = (x-3)/2  ..............kedua ruas dikali 12
2(2x-1) - 3(3x-5) = 6(x-3)
4x-2 - 9x + 15 = 6x - 18
4x - 9x - 6x  = -18 + 2 -15
-11x = -31
     x  = 31/11