Answer
The solution is 3
Work Step by Step
7n +5=12n-10 Subtract 5 from both sides
7n +5 -5=12n-10 -5
7n =12n-15 Subtract 12n from both sides
7n -12n=12n-15-12n
-5n =-15 Divide by -5 on both sides
$\frac{-5n}{-5}$=$\frac{-15}{-5}$
n=3
The solution is 3
Check
7n +5=12n-10 Replace x with 3
7$\times$3 +5=12$\times$3 -10 Multiply
21+5=36-10
26=26
