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solve systems by addition
x+5y=10 and -2x -10y=-20 so if multiply the first equation by 2 I get 2x+10y=20 to me that would cancel out the other equation I'm so lost????
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The 2 equations are essentially the same. One of them is just the other multiplied by -2. So you won't be able to solve for X and Y. For that, you would need 2 different equations. So either it's a trick question or there is a typo.
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thanks I just thought I had lost it!!
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