2x-(-1)=7

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Solution for 2x-(-1)=7 equation: 



2x-(-1)=7

We move all terms to the left:

2x-(-1)-(7)=0

determiningTheFunctionDomain
2x-7-(-1)=0

We add all the numbers together, and all the variables

2x-6=0

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

2x=6

x=6/2

x=3

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