First, expand:
-3x-12x-9 = 96
Simplify:
-15x-9 = 96
Add 9 to both sides:
-15x = 105
Divide both sides by -15:
x = -7
Answer:
-7
Explanation:
-3x-(3(4x)+3(3))=96
-3x-(12x+9)=96
-3x-12x-9=96
-15x-9=96
Add +9 to -9 and add +9 to 96
-15x+105
x=-7
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