[tex] \sf \to \dfrac{n}{10} + 7 = 10[/tex]
[tex] \\ \\ [/tex]
[tex] \sf \to \dfrac{n}{10}= 10 - 7[/tex]
[tex] \\ \\ [/tex]
[tex] \sf \to \dfrac{n}{10}=3[/tex]
[tex] \\ \\ [/tex]
[tex] \sf \to n=3 \times 10[/tex]
[tex] \\ \\ [/tex]
[tex] \sf \to n=30[/tex]
solution;
here
n/10+7=10
or n/10 =10-7
or n/10=3
n=30
Step-by-step explanation: