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-3+a/4=-4
We simplify the equation to the form, which is simple to understand
-3+a/4=-4
We move all terms containing a to the left and all other terms to the right.
+ 0.25a=-4+3
We simplify left and right side of the equation.
+ 0.25a=-1
We divide both sides of the equation by 0.25 to get a.
a=-4
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