1)-s-4s=-14-15
-5s=1/:(-5)
s=(-1/5
2)17y-19y=27-28
-2y=(-1)/:(-2)
y=0.5
3)8k+8k=19+19
16k=38
k=2.375
-s+15=4s-14=
-s-4s=-14-15=
-5s=-29 /:(-5)
s=5,8
17y+28=19y+27=
17y-19y=27-28=
-2y=-1 /:(-2)
y=0,5
8k-19=-8k+19=
8k+8k=19+19=
16k=38 /:16
k=2,375
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1)-s-4s=-14-15
-5s=1/:(-5)
s=(-1/5
2)17y-19y=27-28
-2y=(-1)/:(-2)
y=0.5
3)8k+8k=19+19
16k=38
k=2.375
-s+15=4s-14=
-s-4s=-14-15=
-5s=-29 /:(-5)
s=5,8
17y+28=19y+27=
17y-19y=27-28=
-2y=-1 /:(-2)
y=0,5
8k-19=-8k+19=
8k+8k=19+19=
16k=38 /:16
k=2,375