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7(x+5)=1-4(2-7x)
We move all terms to the left:
7(x+5)-(1-4(2-7x))=0
We add all the numbers together, and all the variables
7(x+5)-(1-4(-7x+2))=0
We multiply parentheses
7x-(1-4(-7x+2))+35=0
We calculate terms in parentheses: -(1-4(-7x+2)), so:We get rid of parentheses
1-4(-7x+2)
determiningTheFunctionDomain -4(-7x+2)+1
We multiply parentheses
28x-8+1
We add all the numbers together, and all the variables
28x-7
Back to the equation:
-(28x-7)
7x-28x+7+35=0
We add all the numbers together, and all the variables
-21x+42=0
We move all terms containing x to the left, all other terms to the right
-21x=-42
x=-42/-21
x=+2
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