bundytyray
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Using the properties of equality to solve the equation -3x - 9 = -21, you would _____. subtract 9 and then multiply by -3 add 9 and then multiply by -3 subtract 9 and then divide by -3 add 9 and then divide by -3

Respuesta :

ReesePantz
You would add 9, then divide by-3.
ScottWilkes
You would add 9 then divide by -3

(Solved problem)

1st step, add 9 on both sides.

-3x -9 = -21
      +9   +9

Next step, divide by 3 on both sides.

-3x = -12
 ––   –––
-3x   -3x

x = 4

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