Carrie works due south of her apartment. Her friend Sarah works due east of the
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The correct solution is C
Subtract 6 from both sides of the equation
3x + 6 - 6 = 21 - 6
3x = 15
Then divide both sides by 3
x = 5
Subtract 6 from both sides of the equation
3x + 6 - 6 = 21 - 6
3x = 15
Then divide both sides by 3
x = 5