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12(z+12)=225
We simplify the equation to the form, which is simple to understand
12(z+12)=225
Reorder the terms in parentheses
+(+12z+144)=225
Remove unnecessary parentheses
+12z+144=+225
We move all terms containing z to the left and all other terms to the right.
+12z=+225-144
We simplify left and right side of the equation.
+12z=+81
We divide both sides of the equation by 12 to get z.
z=6.75
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