Răspuns:
a) 138
b)3888
c) 111
d) 60
e) 8
Explicație pas cu pas:
a)(x3 +47)=146+315=461
x3=461-47=414
x=414/3=138
b)(x/6-528)=517-307=120
x/6=120+528=648
x=648*6=3888
c)(x/3-3)=306/9=34
x/3=34+3=37
x=37*3=111
d) (x/2)*3=90
x/2=90/3=30
x=30*2=60
e) (63-x5)-3=20
63-x5=20+3=23
x5=63-23=40
x=40/5=8