(-12z)+(-9z)=

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Solution for (-12z)+(-9z)= equation:


(-12z)+(-9z)=0

We simplify the equation to the form, which is simple to understand 
(-12z)+(-9z)=0

Remove unnecessary parentheses
-12z+(-9z)=0

Remove unnecessary parentheses
-12z-9z=0

We move all terms containing z to the left and all other terms to the right. 
-12z-9z=0

We simplify left and right side of the equation. 
-21z=0

We divide both sides of the equation by -21 to get z. 
z=-0

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