7(a-1)-3a=5+4(2a-1)

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Solution for 7(a-1)-3a=5+4(2a-1) equation:



7(a-1)-3a=5+4(2a-1)
We move all terms to the left:
7(a-1)-3a-(5+4(2a-1))=0
We add all the numbers together, and all the variables
-3a+7(a-1)-(5+4(2a-1))=0
We multiply parentheses
-3a+7a-(5+4(2a-1))-7=0
We calculate terms in parentheses: -(5+4(2a-1)), so:
5+4(2a-1)
determiningTheFunctionDomain 4(2a-1)+5
We multiply parentheses
8a-4+5
We add all the numbers together, and all the variables
8a+1
Back to the equation:
-(8a+1)
We add all the numbers together, and all the variables
4a-(8a+1)-7=0
We get rid of parentheses
4a-8a-1-7=0
We add all the numbers together, and all the variables
-4a-8=0
We move all terms containing a to the left, all other terms to the right
-4a=8
a=8/-4
a=-2

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