1. alicia and jamal completed the following "
given : 3x+7=x-5
prove: x=-6
Alicia's workt.
3x+7=x-5 : given
2x+7=-5: subtraction property of equality
2x=-12: subtraction property of quality
x=-6: division property of equality

jamal's work

3x+7=x-5 : given
7=-2x-5 : subtraction property of equality
12=-2x: addition property of equality
-6=x : division property of equality
who completed the proof correctly?
a) alicia only
b) jamal only
c) both alicia and jamal
d) neither alicia nor jamal

Respuesta :

Answer:

both alicia and jamal

Step-by-step explanation:

From the given steps we can see that both Alicia and Jamal completed the proof correctly.

Option C

Given :

3x+7=x-5

prove: x=-6

Alicia's workout

3x+7=x-5 : given

2x+7=-5: subtraction property of equality

2x=-12: subtraction property of quality

x=-6: division property of equality

Alicia's steps are correct. She proved x=-6

jamal's work

3x+7=x-5 : given

7=-2x-5 : subtraction property of equality

12=-2x: addition property of equality

-6=x proved

Jamal's steps are also correct. Jamal started by subtracting 3x from both sides. That approach is also correct. He proved x=-6

so, both Alicia and Jamal are correct

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