help in comment

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help in comment

anonymous · Answer

attachment

directrix · Answer

x + 4y = 10
2x - y = 470
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Multiply the first equation by -2
x + 4y = 10 ---> -2x -8y = -20
2x - y = 470---?  2x -   y  = 470

danjs · Answer

i just showed you how to do that type of prob

texaschic101 · Answer

multiply 1st eq by -2...then add them and the x's cancel out and you can solve for y. Once y is found, sub that back into either equation to find x

danjs · Answer

ha, people just cheating on online tests or something here

texaschic101 · Answer

answers were not given

danjs · Answer

i just did a problem exactly the same with different coefficients

texaschic101 · Answer

elimination can be a bit confusing for some...just be patient

triciaal · Answer

to solve by elimination 
let the coefficients of one variable be equal and opposite so they will cancel when the 2 equations are added
you now have one equation with one variable
solve for that variable then substitute this value in either of the original equations to get the value of the other variable.

directrix · Answer

-2x -8y = -20
2x - y = 470
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@KathyMae95 -2x -8y = -20
2x - y = 470
-------------

@KathyMae95

anonymous · Answer

ok

danjs · Answer

only the answer is important to some people i guess

anonymous · Answer

so if i did it right it would x= 210 and y = -50