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Marta_Voda [28]
3 years ago
8

Which properties justify the steps taken to solve the system?

Mathematics
2 answers:
True [87]3 years ago
4 0
<span>Multiplication Property of Equality
Subtraction Property of Equality
Division Property of Equality
Substitution Property of Equality
Simplify
Subtraction Property of Equality
Division Property of Equality</span>
bija089 [108]3 years ago
3 0

Answer and Step-by-step explanation:

Since we have given that

2x-4y=18\\\\3x+3y=0

We need to mention the properties for the given steps:

6x-12=54\\\\6x+6y=0

1) Multiplication property of equality

-18y=54

2) Addition property of equality

y=-3

3) Division property of equality

2x-4(-3)=18

4) Substitution property of equality

2x+12=18

5) Simplify

2x=6

6) Subtraction property of equality

x=3

7) Division property of equality

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