Step 1. Simplify -2 + 2 to 0
[tex]4n-40=7*0[/tex]
Step 2. Simplify 7 * 0 to 0
[tex]4n-40=0[/tex]
Step 3. Add 40 to both sides
[tex]4n=40[/tex]
Step 4. Divide both sides by 4
[tex]n= \frac{40}{4} [/tex]
Step 5. Simplify [tex] \frac{40}{4} [/tex] to 10
[tex]n=10[/tex]
Done :) Hope this helps! :)
