Question

determinati nr natural care vetifica relatiile a).(x+3)-(120-70)>sau egal cu 50. b) (21-17)-(5-x) <0. c) (75-40)-(x+5)>sau egal cu 0. c)(75-40)-(×+5)>sau egal cu 0. d).(527-432)-(×+15)>sau egal cu 50

Answer 1

cred ca ti-am trimis bine pozele Vad ca doar una s-a dus. incerc sa ti la scriu.
(xplus3)-(120-170) mai mare sau ega 50
(x plus 3)-50 egal 50
(x plus 3) egal 50 plus 50
x plus 3 egal 100
x egal 100-3
x egal 97


(75-40)-(x plus 5) mai mare sau egal 0
35-(x plus 5) egal 0
x plus 5 egal 35-0
xplus 5 egal 35
x egal35-5
x egal 30.

Answer 2

(X+3)-50≤50 => x+3≤50 +50 => x+3 ≤100 => x≤ 100-3 => x≤97........................b)21-17-5+x <0 ......-1+x <0 ........x<1 ...............c)35-x+5 ≥0 => 40-x ≥ 0 .....-x≥0-40 .....-x≥-40