7z-8z=-7-8-9z

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Solution for 7z-8z=-7-8-9z equation:


7z-8z=-7-8-9z

We simplify the equation to the form, which is simple to understand 
7z-8z=-7-8-9z

We move all terms containing z to the left and all other terms to the right. 
+7z-8z+9z=-7-8

We simplify left and right side of the equation. 
+8z=-15

We divide both sides of the equation by 8 to get z. 
z=-1.875

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