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Solve this system of equations. Please write your answer as an ordered pair. -5x-8y=17 2x-7y=-17
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These are fun! Which method do you prefer? Substitution or addition?
Whichever one is the easy one to understand..
Addition is probably the way to go with something like this. Let's get to work!
Alright Whats the first step or where do I start first?
The thing you have to remember here is that you are tryng to solve for one variable at a time, so you can use its value to find the other one. So we will work to eliminate the x term first.
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Alright
What we will do is to multiply the first equation by 2 and the second equation by 5, and when we do that, watch what happens:
|dw:1405134967429:dw|
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