ж)4z-28=z+17
3z=17+28
3z=45
z=15
з)c-32=-7c-56
c+7c=-56+32
8c=-24
c=-3
и)12-2k+6=26
-2k=26-12-6
-2k=8
k=-4
л)-3.2n+4.8=-2.4n-4.8
-3.2n+2.4n=-4.8-4.8
-0.8n=-9.6
n=12
m)-4z+6=-z+7.2
-4z+z=7.2-6
-3z=1.2
z=-0.4
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Answers & Comments
ж)4z-28=z+17
3z=17+28
3z=45
z=15
з)c-32=-7c-56
c+7c=-56+32
8c=-24
c=-3
и)12-2k+6=26
-2k=26-12-6
-2k=8
k=-4
л)-3.2n+4.8=-2.4n-4.8
-3.2n+2.4n=-4.8-4.8
-0.8n=-9.6
n=12
m)-4z+6=-z+7.2
-4z+z=7.2-6
-3z=1.2
z=-0.4