Question 657675
Starting with
(3n-10)+(n+5)=47
...
3n - 10 + n + 5 = 47
Combine like terms
4n = 47 + 10 - 5
4n = 52
...
Divide both sides by 4
n = {{{52/4}}}
{{{highlight(n = 13)}}}
...
Check {{{cartoon(
3(13)-10 = 29,
13 + 5 = 18,
29 + 18,
47)}}}
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