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Ryan, Sasha, Connie, and Lawrence completed the following proof. Who completed the proof incorrectly?
Given: 3x+7=5x-11
Prove: x=9

A) Ryan
B) Sasha
C) Connie
D) Lawrence

Ryan Sasha Connie and Lawrence completed the following proof Who completed the proof incorrectly Given 3x75x11 Prove x9 A Ryan B Sasha C Connie D Lawrence class=
Ryan Sasha Connie and Lawrence completed the following proof Who completed the proof incorrectly Given 3x75x11 Prove x9 A Ryan B Sasha C Connie D Lawrence class=

Respuesta :

sasha was incorrect because she divided but said she had subtracted

Answer:

The person who completed the proof incorrectly is:

                 Option: B

                   B)  Sasha

Answer with explanation:

Sasha was incorrect with her proof.

She followed as follows:

  • 3x+7=5x-11      Given
  • 7=2x-11

( She subtracted 3x from both the sides of the equation)

Hence, the property is subtraction property of equality.

  • 18=2x

She added 11 on both the sides of the equation.

Hence, the property is addition property of equality.

  • x=9

she divided both side of the equation by 2.

Hence, the property is division property of equality but she called it as a subtraction property of equality.

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