4(7-7a)-2a=-9+7a

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Solution for 4(7-7a)-2a=-9+7a equation:



4(7-7a)-2a=-9+7a
We move all terms to the left:
4(7-7a)-2a-(-9+7a)=0
We add all the numbers together, and all the variables
4(-7a+7)-2a-(7a-9)=0
We add all the numbers together, and all the variables
-2a+4(-7a+7)-(7a-9)=0
We multiply parentheses
-2a-28a-(7a-9)+28=0
We get rid of parentheses
-2a-28a-7a+9+28=0
We add all the numbers together, and all the variables
-37a+37=0
We move all terms containing a to the left, all other terms to the right
-37a=-37
a=-37/-37
a=1

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