Question

Ma anutati la ex 529 punctele d,e,f,g,h,i,j.Va rog am nevoie pentru maine la scoala

Answer 1

d) [21-(648:24+a):7]x3+55=100
[21-(27+a):7]x3=100-55
[21-(27+a):7]x3=45
[21-(27+a):7]=45:3
21-(27+a):7=15
(27+a):7=21-15
(27+a):7=6
27+a=6x7
27+a=42
a=42-27
a=15

e) [1860:3+(a+164):2+7]:8=100
[620+(a+164):2+7]=100x8
620+(a+164):2+7=800
627+(a+164):2=800
(a+164):2=800-627
(a+164):2=173
a+164=173x2
a+164=346
a=346-164
a=182

f) 110-[a-15x(252-15x16]=18
[a-15x(252-240]=100-18
a-15x12=82
a-180=82
a=82+180
a=262

g)[18+(a-2016):3]x3-15=2019
[18+(a-2016):3]x3=2019+15
[18+(a-2016):3]x3=2034
[18+(a-2016):3]=2034:3
18+(a-2016):3=678
(a-2016):3=678-18
(a-2016):3=660
a-2016=660x3
a-2016=1980
a=2016+1980
a=3996

h) 5+[32-(10:ax4+12)]x7=89
[32-(10:ax4+12)]x7=89-5
[32-(10:ax4+12)]x7=84
[32-(10:ax4+12)]=84:7
32-(10:ax4+12)=12
(10:ax4+12)=32-12
10:ax4+12=20
10:ax4=20-12
10:ax4=8
10:a=8:4
10:a=2
a=10:2
a=5

incearca si tu i si j, dupa modelele de mai sus