5n+20= 45
n = 5
7 (x+3)= 49
x=4
n+8
n=10
= 18
6n + 19= 61
n=7
2 (x+2)= 8
x=8
n+ 23
= 30
2n+20=40
8 (x+11)= 120
8n
n=9
= 72
n/9+6=11
n=45
3 (x+6)= 33
x=5
7n
n=3
=21
n/3+10=19
n=27
4 (x+2)= 32
x=6
x/8=8
48
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