How do I solve - 12=4 (n-2)

N=-1 ... : P

-12 = 4 (n-2)

multiply 4 with what's in the parentheses. You want to distribute it.

You get

-12 = 4n - 8

move the constant (-12) to the opposite side of the =.

move the variable (4n) to the left, or opposite side of the =.

equation now looks like

-4n = - 8+12

Calculate the sum or difference of - 8 + 12

-4n=4

divide by negative four on each side

n = - 1