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4x - 6y = 10 5x + 7y = -2 If you were going to solve this system by elimination by adding the two equations together, what would be a correct first step? A) Multiply the first equation by 7 and the bottom by 6. B) Multiply the first equation by 5 and the bottom by 4. C) Multiply the first equation by -7 and the bottom by 6. D) Multiply the first equation by 7 and the bottom by -6.

Respuesta :

derpy16000
A. multiply the first equation by 7 and the bottom by six

4x-6y=10  *7
5x+7y=-2  *6

28x-42y=70
30x+42y=-12

add together to cancel out the y's
roseponce70

Answer:

Multiply the first equation by 7 and the bottom by 6.

Step-by-step explanation:

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