Х+76=15х7
Х+76=105
Х=105-76
Х=29
У=5-8+2
у=-3+2
у=-1
(-1-2)+8=5
120-d=64
-8d=64-120
-8d= -56
d=7
(4 1/2 - 2 1/4) * 11/9 : 1/9 = 24 3/4,
1) 4 1/2 - 2 1/4 = 4 2/4 - 2 1/4 = 2 1/4,
2) 2 1/4 * 11/9 = 9/4 * 11/9 = 11/4 = 2 3/4,
3) 2 3/4 : 1/9 = 11/4 * 9/1 = 99/4 = 24 3/4
1)76:4=19
2)57×6=342
3)19+342=361
4)361×1000=361000
5)361000-65386=295614
6)295614+694386=990000