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0.75a-3=(-9)
We simplify the equation to the form, which is simple to understand
0.75a-3=(-9)
Remove unnecessary parentheses
0.75a-3=-9
We move all terms containing a to the left and all other terms to the right.
+ 0.75a=-9+3
We simplify left and right side of the equation.
+ 0.75a=-6
We divide both sides of the equation by 0.75 to get a.
a=-8
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