Question

calculeaza pentru a afla numarul necunoscut din fiecare expresie numerica:689+n=8976
VA ROG E URGENT,VA ROG MULT,DAU COROANA,VA ROGGG​

Answer 1

a)
n=8976-689
n=8287

4567-1818=6000-n
2749=600-n
n=6000-2749
n=3251

b)5001=3450+n
n=5001-3450
n=1551

2012+1918=n-3456
3930=n-3456
n=3930+3456
n=7386

c)
La primul nu pot sa vad tot ce scrie

n+819=10000
n=10000-819
n=9181

Answer 2

a) 689+n=8976

n=8976-689

n= 8287.

4567-1818=6000-n

2749= 6000-n

n+2749=6000

n= 6000-2749

n= 3251

b) 5001=3450+n

-n+5001=3450

-n= 3450-5001

-n= -1551

n= 1551

2012+1918= n - 3456

3930= n-3456

-n+3930= 3456

-n= 3456-3930

-n= -7386

n = 7386

c) 999+n=5678+4067

999+n= 9745

n= 9745-999

n= 8746

n+819=10000+3452

n+819= 13452

n= 13452-819

n= 12633.