Answer:
17
Explanation:
To solve for n we need to isolate it. Start with combining like terms.
5n + 23 + 3n + 21 = 180
5n + 3n
23 + 21
8n + 44 = 180
Subtract 44 from both sides.
8n = 136
Divide 8 from both sides.
n = 17
n= 17.
Check image below.
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