Question

Aflați X dacă:
(306:6+5×X):7+23=66

Answer 1

( 306 : 6 + 5 × X ) : 7 + 23 = 66
( 306 : 6 + 5 × X ) : 7 = 66 - 23
( 306 : 6 + 5 × X ) : 7 = 43
(306 : 6 + 5 × X )= 43 × 7
306 : 6 + 5 × X = 301
51 + 5 × X = 301
5 × X = 301 - 51
5 × X = 250
X = 250 : 5
X = 50

Answer 2

(306:6+5×x):7+23=66
(51+5×x):7+23=66
(51+5×x):7=66-23
(51+5×x):7=43
51+5×x=43×7
51+5×x=301
5×x=301-51
5×x=250
x=250:5
x=50


Verificare:
(306:6+5×50):7+23=
=(51+250):7+23=
=301:7+23=
=43+23=
=66


SUCCES !