bantuin yahhbesok udah di kumpul-,-

-4x = -2x =-2/-4 = 1/2

(x+9)/2 - (2x-3)/2 = (3x+4)/4 (x 4)
2(x+9) - 2(2x-3) = 3x+4
2x+18 - 4x +6=3x+4
-5x=-20
x=4