a)
X=L-3K
X=9F-E
X=H-4G
X=8R-3P
B)
X=D+7C
X=N+5M
X=R+3P
X=9B+4A
C)
X=N/7M
X=R/3P
X=2R/P
X=2L/3K
D)
2X=AB CZYLI X=AB/2
X=6AB BO MNOŻYSZ NA KRZYŻ
X=5TU
X=10MN
5a+m=n |-m
5a=n-m |/5
a=
ax-Y=z |+Y
ax=z+Y |/x
a=
4a+u=w |-u
4a=w-u |/5
a=
Ba-c=D |+c
Ba=D+c |/B
a=
5p-ar=3 |+ar
5p=3+ar|-3
ar=5p-3|/r
a=
mn-6a=b |+6a
mn=b+6a|-b
6a=mn-b|/6
a=
-3p+2a=1|+3p
2a=1+3p|/2
a=
