(3/2)n+(9/4)-1=-1

Solution for (3/2)n+(9/4)-1=-1 equation:

(3/2)n+(9/4)-1=-1

We simplify the equation to the form, which is simple to understand 
(3/2)n+(9/4)-1=-1

Simplifying:
(+1.5)*n+(9/4)-1=-1

Simplifying:
(+1.5)*n+(+2.25)-1=-1

Reorder the terms in parentheses
(+1.5n)+(+2.25)-1=-1

Remove unnecessary parentheses
+1.5n+(+2.25)-1=-1

Remove unnecessary parentheses
+1.5n+2.25-1=-1

We move all terms containing n to the left and all other terms to the right. 
+1.5n=-1-2.25+1

We simplify left and right side of the equation. 
+1.5n=-2.25

We divide both sides of the equation by 1.5 to get n. 
n=-1.5