10(z-9)=-40

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Solution for 10(z-9)=-40 equation: 



10(z-9)=-40

We move all terms to the left:

10(z-9)-(-40)=0

We add all the numbers together, and all the variables

10(z-9)+40=0

We multiply parentheses

10z-90+40=0

We add all the numbers together, and all the variables

10z-50=0

We move all terms containing z to the left, all other terms to the right

10z=50

z=50/10

z=5

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