7(1-a)=45

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Solution for 7(1-a)=45 equation: 



7(1-a)=45

We move all terms to the left:

7(1-a)-(45)=0

We add all the numbers together, and all the variables

7(-1a+1)-45=0

We multiply parentheses

-7a+7-45=0

We add all the numbers together, and all the variables

-7a-38=0

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

-7a=38

a=38/-7

a=-5+3/7

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