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3x - 7y = 10 2x - 5y = 12 If the plan is to add the two equations to solve, what could be the first step to solve this system of equations? A) Multiply the first equation by 2 and the second equation by 3. B) Multiply the first equation by 5 and the second equation by 7. C) Multiply the first equation by -2 and the second equation by 3. D) Multiply the first equation by -2 and the second equation by -3.
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