8(2x+1)-1=-9

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Solution for 8(2x+1)-1=-9 equation: 



8(2x+1)-1=-9

We move all terms to the left:

8(2x+1)-1-(-9)=0

We add all the numbers together, and all the variables

8(2x+1)+8=0

We multiply parentheses

16x+8+8=0

We add all the numbers together, and all the variables

16x+16=0

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

16x=-16

x=-16/16

x=-1

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