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xxMikexx [17]
3 years ago
6

Create an equivalent system of equations using the sum of the system and the first equation

Mathematics
2 answers:
ohaa [14]3 years ago
8 0

Answer:

\large\boxed{A.\ \left\{\begin{array}{ccc}-3x+y=12\\-2x+4y=18\end{array}\right}

Step-by-step explanation:

\underline{+\left\{\begin{array}{ccc}-3x+y=12\\x+3y=6\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad-2x+4y=18\\\\\text{therefore}\\\\\left\{\begin{array}{ccc}-3x+y=12\\-2x+4y=18\end{array}\right

KIM [24]3 years ago
6 0

Answer:

it's A

Step-by-step explanation:

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