The equation −3x−9=−21 is solved as follows. Supply the correct numbers to complete the solution.(1 point) −3x−9=−21 −3x= Add 9 to both sides. x= Divide both sides by −3.

Question

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Answer 1

−3x−9=−21
−3x=−21 + 9 (Add 9 to both sides)
−3x=−12
x=−12/−3 (Divide both sides by −3)
x= 4