-1-3(1-7a)=101

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Solution for -1-3(1-7a)=101 equation: 



-1-3(1-7a)=101

We move all terms to the left:

-1-3(1-7a)-(101)=0

We add all the numbers together, and all the variables

-3(-7a+1)-1-101=0

We add all the numbers together, and all the variables

-3(-7a+1)-102=0

We multiply parentheses

21a-3-102=0

We add all the numbers together, and all the variables

21a-105=0

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

21a=105

a=105/21

a=5

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