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Answer:
1.
23+a=50
a=50-23
a=27
2.
1+b=55
b=55-1
b=54
3. 15-n=3
n=12
4.
a-14=9
a=9+14
a=23
5.
px25=100
p=100/25
p=4
6.
yx 15 = 60
y = 60 / 15
y = 4
7.
8xa = 64
a= 64/ 8
a=8
8.
ax 9 = 81
a = 81 / 9
a = 9
9.
p + 1 = 99
P= 99 - 1
P = 98
10.
a - 12 = 1
a= 1 + 12
a = 13
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