Question

1.Afla nr necunoscute.
A)538-x+821=1798
b)x-4281+3584=30000
c)2030+x-13521=8213
va rog dau coroana!!

Answer 1

a ) 538-x+821 = 1798
538 - x = 1798 - 821 
538 -x = 977
-x = 977- 538 
-x = 439 
x = - 439 

b ) x-4281 + 3584 = 30000
x- 4281 = 30000- 3584 
x-4281 = 26.416
x= 26.416 + 4281
x = 30.697 

c ) 2030 + x - 13521 =8213 
2030 + x = 8213+13521 
2030 + x = 21734
x = 21734 - 2030 
x = 19704