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