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2a-7/4=-1
We simplify the equation to the form, which is simple to understand
2a-7/4=-1
Simplifying:
2a-1.75=-1
We move all terms containing a to the left and all other terms to the right.
+2a=-1+1.75
We simplify left and right side of the equation.
+2a=0.75
We divide both sides of the equation by 2 to get a.
a=0.375
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