3x - 5y = 10 6x + 3y = -6 Marybeth is going to solve this problem by multiplying the top equation by -2. If she does this and combines the equations, what does she get?

3x - 5y = 10
6x + 3y = -6

Marybeth is going to solve this problem by multiplying the top equation by -2. If she does this and combines the equations, what does she get?
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1 Answer

If she does this she gets:

-6x+10y+6x+3y=-20-6

This eliminates the x terms leaving 13y=-26, from which y=-2. She can use this value of y to find x from either equation.

by Top Rated User (1.1m points)

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