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4=(a-(-2))/(-4)
We move all terms to the left:
4-((a-(-2))/(-4))=0
We multiply all the terms by the denominator
-((a-(-2))+4*(-4))=0
We calculate terms in parentheses: -((a-(-2))+4*(-4)), so:We get rid of parentheses
(a-(-2))+4*(-4)
We add all the numbers together, and all the variables
(a-(-2))-16
We calculate terms in parentheses: +(a-(-2)), so:We get rid of parentheses
a-(-2)
We add all the numbers together, and all the variables
a+2
Back to the equation:
+(a+2)
a+2-16
We add all the numbers together, and all the variables
a-14
Back to the equation:
-(a-14)
-a+14=0
We add all the numbers together, and all the variables
-1a+14=0
We move all terms containing a to the left, all other terms to the right
-a=-14
a=-14/-1
a=+14
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