20z+-11z=-18

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Solution for 20z+-11z=-18 equation: 



20z+-11z=-18

We move all terms to the left:

20z+-11z-(-18)=0

We add all the numbers together, and all the variables

9z+18=0

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

9z=-18

z=-18/9

z=-2

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