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garik1379 [7]
3 years ago
6

When solving this system of linear equations with the elimination method, you can multiply the bottom equation by 3.

Mathematics
2 answers:
vfiekz [6]3 years ago
5 0
<h2>Answer: A - Multiplication property of equality</h2>

Still the correct answer on APEX as of 4/29/19.

tekilochka [14]3 years ago
3 0

Answer: The correct option is A.

Explanation:

The system of equations is,

3x+6y=38

5x-2y=-30

When solving this system of linear equations with the elimination method, we can multiply the bottom equation by 3.

3(5x-2y)=3(-30)

This step works because according to the multiplication property of equality,

If,

a=b         ... (1)

Multiplied both side by m then,

ma=mb    ..... (2)

Then (1) and (2) are equivalent equations.

So, by multiplication property of equality, the second equation can be multiply by 3.

Therefore, he correct option is A.

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