Pete began solving the system {x+3y=132x−y=−2 by rewriting the system as {x+3y=136x−3y=−6 .
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Mathematics, 01.09.2019 12:00 BigGirlsTheBest
Pete began solving the system {x+3y=132x−y=−2 by rewriting the system as {x+3y=136x−3y=−6 .
which property justifies this step?
a. addition property of equality
b. subtraction property of equality
c. substitution property of equality
d. multiplication property of equality
Answers: 2
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