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100
x+5=8
x=3
100
3x+7=19
x=4
100
p+2p-3=6
p=3
100
8t+5=6t+1
t=-2
100
6=c/7
c=42
200
6=w-7
w=13
200
10=7-m
m=-3
200
5a+3-3a=-7
a=-5
200
8+4m=9m-7
m=3
200
4y-4=16
y=5
300
-2=n-6
n=4
300
a/3+4=6
a=6
300
12v+14+10v=80
v=3
300
19-13p=-17p-5
p=-6
300
6x-2(x-5)=46
x=9
400
m/2=14
m=28
400
6=-7f+4f
f=-2
400
35=-5+2x-7x
x=-8
400
9a=6(a+4)
a=8
400
9-3k=17-2k
k=-8
500
-108=9j
j=-12
500
10=2/7n+4
n=21
500
5h+2(11-h)=-5
h=-9
500
40+14j=2(-4j-13)
j=-3
500
5(1=4m)=2(3=10m)
no solution