1=7-2a

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Solution for 1=7-2a equation:



1=7-2a
We move all terms to the left:
1-(7-2a)=0
We add all the numbers together, and all the variables
-(-2a+7)+1=0
We get rid of parentheses
2a-7+1=0
We add all the numbers together, and all the variables
2a-6=0
We move all terms containing a to the left, all other terms to the right
2a=6
a=6/2
a=3

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