Question

Aflati X din egalitate:

Answer 1

A) 25.340-(43.121-x)= 11;
B) 4.520-(x+2.790-18)= 1;
C) 1.250:(x²+25)= 10;
D) (3x-1)·20= 280;
E) (x-2):25= 30.

A) 43.121-x= 25.340-11
43.121-x= 25.329
x= 43.121-25.329
x= 17.792

B) x+2.790-18= 4.520-1
x+2.790-18= 4.519
x+2.790= 4.519+18
x+2.790= 4.537
x= 4.537-2.790
x= 1.747

C) x²+25= 1.250:10
x²+25= 125
x²= 125-25
x²= 100
x= √100
x= 10

D) 3x-1= 280:20
3x-1= 14
3x= 1+14
3x= 15
x= 15:3
x= 5

E) x-2= 25·30
x-2= 750
x= 750+2
x= 752

/robèrtinni