Ա.
8×2+1=17
6/1-17/2=6×2/1×2=12/2-17/2=-5/2=-2.1/2
Գ.
22×2+5=49
9/11-49/22=9×2/11×2=18/22-49/22=-31/22
Ե.
x-1/2=2
2+1/2=2.1/2
X=2.1/2
a.
2x+6=6-x
2x+x=6-6
2x+x=3x
3x=0
X=0
0:3=0
g.
21-7x+4x+8=8
-7x+4x=8-21-8
-7x+4x=-3x
-21:(-3)=7
e.
3×4-x=2x+1
12-3x=2x+1
-3x-2x=1-12
-3x-2x=-5x
-5x=-11
X=11/5
(-5.1/3+2.3/4)-3.1/4=