Question

27 Determinați termenul necunoscut x știind că:
a 1278728: x=88;
d 312: (x+5) = 24;
g
(102:x-47:x):5=11;
i (144:x-4):2-3=1;
b (144:x-4): 2-222: 74 = 1;
e 73 15+40032: x= 1512;
h (37:x+83:x): 2 = 15;
j 155: (11+480: x) = 5.
c127+559056:x=559183;
f1234-1234: x=617;

Answer 1

a 1278728: x=88;

x=1278728/88=319682/22=159841/11=14531

d 312: (x+5) = 24;

x+5=312/24=13 =>x=13-5=8

g (102:x-47:x):5=11;

102-47=55x =>55x=5=>x=1

i (144:x-4):2-3=1;

(144:x-4):2=4=>144:x-4=8 =>144=12x=>x=144/12=12

b (144:x-4): 2-222: 74 = 1;

144:x-4=(1+3)·2=>144=12x=>x=12

e 73 15+40032: x= 1512;

40032=(1512-7315)x=>x=-40032/5803

h (37:x+83:x): 2 = 15 =>x=4

j 155: (11+480: x) = 5 => x=24

c 127+559056:x=559183; =>x=1

f 1234-1234: x=617;=>x=2