Mathematics

Guest

13 January, 01:58

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