Question

Gasiti numarul natural x care verifica egalitatea:
a)x+1002=2001
b)(x=13)+87=200
c)3*x+81=318
d)281 +x=2011
e)x-157=356
f)2*x+237=2013

Urgent !!

Answer 1

a) x + 1002 = 2001
x=2001-1002
x=999

b) nu inteleg daca ai vrut sa pui  x = 13 sau x+13, dar il rezolv ca si cum ai pus x+13
(x+13)+87=200
x+13 = 200-87
x+13 = 113
x = 113 pe 13

c) 3*x+81=318
3x = 318 - 81
3x = 237
x = 237:3
x=79

d)281 +x=2011
x = 2011 - 281
x= 1730

e) x-157=356
   x = 356 + 157
    x=513
f) 2*x+237=2013
   2x = 2013 - 237
   2x = 1776
    x= 1776 : 2 
    x=888

Answer 2

a) x+1002=2001
X=2001-1002
X=999

B) (x=13)+87=200
x=13≈200-87
13x=13
x=1

c. 3x+81=318
3x=318-81
3x=237
x=237:3= 70

d 281+x=2011
x=2011-281=1730

e. x-157=356
x=356+157=513
f. 2x+237=2013
2x=2013-237=1776
x=1776:2=888