Question

51) 501.010- { [(7+X):4-3]×(9-2×4)}×501=500.509 prin metoda mersului invers​

Answer 1

Răspuns:

Explicație pas cu pas:

501010-{[(7+X):4-3]x(9-2x4)}x501=500509

{[(7+X):4-3]x(9-2x4)}x501=501010-500509

{[(7+X):4-3x(9-2x4)}x501= 501

[(7+X):4-3x(9-2x4)]=501:501

(7+X):4-3x(9-2x4)=1

(7+X):4-3x(9-8)=1

(7+X):4-3x1=1

(7+X) :4-3=1:1

(7+X):4-3=1

7+X:4=3+1

7+X:4=4

7+X=4x4

7+X=16

X=16-7

X=9