Respuesta :

AnimeBrainly
-6n + 21 = 12n - 15

-6n -12n = -15 -21
-18n = -36

n = 2

hope this helps
Hello

Here we need to solve for n by separating it in one side and the other terms in the other side

-6n+21 =12n-15                    add 6n to both sides

-6n+21+6n =12n-15+6n        simplify and combine like terms

21 = 18n - 15                        add 15 to both sides

21 + 15  = 18n - 15 + 15      combine like terms

36 = 18 n                              divide by 18

36/18 = 18n /18

n = 2





DOne

I hope you got the idea




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