2z+1+6z+9=90

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Solution for 2z+1+6z+9=90 equation: 



2z+1+6z+9=90

We move all terms to the left:

2z+1+6z+9-(90)=0

We add all the numbers together, and all the variables

8z-80=0

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

8z=80

z=80/8

z=10

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