A)4x+4x= 424;
B)15y-8y=714
C)9z+z=500
D)10k-k=702
E)4l+5l=1200
F)6t+3t-t=6400
Cрочно!!!

A) 8x=424 ; x=53.B) 7y=714; y=102.C) 10z=500; z=50.D)9k=702; k=78.E) 9l=1200; l=133..F) 8t=6400; t=800....

а) 4х + 4х = 424 8х = 424 х = 53в) 15у - 8у = 714 7у = 714 у = 102 с) 92 + z = 500 10z = 500 z = 50D) 10k - k = 702 9k = 702 k = 78E) 4l + 5l = 12000 9l = 1200 l = 133,3F) 6t + 3t - t = 6400 8t = 6400 t = 800