Question

Calculati 38 + 38 x ( 11b - 61 x 5 : 5 ) = 2 x ( 100 + 14 ) metoda mersului invers

Answer 1

38+38x(11b-61x5:5)=2x(100+14).
38+38x(11b-305:5)=2x114
38+38x(11b-61)=228
38+(11b-61)=228:38
38+(11b-61)=6
(11b-61)=38-6
11b-61=32
11b=32+61
11b=93
b=93:11
b=8.454545454545455
b=