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-(a+9/4)=-4
We move all terms to the left:
-(a+9/4)-(-4)=0
We add all the numbers together, and all the variables
-(+a+9/4)-(-4)=0
We add all the numbers together, and all the variables
-(+a+9/4)+4=0
We get rid of parentheses
-a+4-9/4=0
We multiply all the terms by the denominator
-a*4-9+4*4=0
We add all the numbers together, and all the variables
-a*4+7=0
Wy multiply elements
-4a+7=0
We move all terms containing a to the left, all other terms to the right
-4a=-7
a=-7/-4
a=1+3/4
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