[الامير اشرف]

execise 3 n 2
5x-2sghar min 2(x+5)
5x 3ala x+5 asghar min 2+2
5x 3ala x+5 asghar min 4
x 3ala x+5 asghar min 43ala 5
x 3ala x+5 asghar min 4(x+5) 3ala x+5
5x asghar min 4x+20
x asghar min 20
dons jami3 al a3dad al aseghar min 20 hiya holoul li dadihi le motarajiha