Răspuns :
[(x+43)x5]-184=51
(x+43)x5=51+184
(x+43)x5=235
a+43=235:5
a+43=47
a=47-43
a=4
(x+43)x5=51+184
(x+43)x5=235
a+43=235:5
a+43=47
a=47-43
a=4
a=numarul
[(a+43)x5]-184=51
(a+43)x5=51+184
(a+43)x5=235
a+43=235:5
a+43=47
a=4
[(a+43)x5]-184=51
(a+43)x5=51+184
(a+43)x5=235
a+43=235:5
a+43=47
a=4