Answer:
1. b=23
2.n=8
3.x=48
4.n=3
Explanation:
1.b-10=13
b=23
2.n-18=-10
n=-10+18
n=8
3. 3=X/16
x=3 x 16
x=48
4. 14n=42
n=42/14
n=3
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