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(.75)x=-9
We move all terms to the left:
(.75)x-(-9)=0
We add all the numbers together, and all the variables
(0.75)x-(-9)=0
We add all the numbers together, and all the variables
(0.75)x+9=0
We multiply parentheses
0.75x+9=0
We move all terms containing x to the left, all other terms to the right
0.75x=-9
x=-9/0.75
x=-12
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