Odpowiedź :
4x-1+3x+2x+5=22
4x+3x+2x=22+1-5
9x=18/:9
x=2
1 bok= 4x-1=4*2-1=7
2 bok = 3x=2*3=6
3 bok= 2x+5=2*2+5=9
4x+3x+2x=22+1-5
9x=18/:9
x=2
1 bok= 4x-1=4*2-1=7
2 bok = 3x=2*3=6
3 bok= 2x+5=2*2+5=9