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sonja_lee2
Group Title
what is the ycoordinate of the solution of the system of equations?
3x+2y=25
x+y=0
 2 years ago
 2 years ago
sonja_lee2 Group Title
what is the ycoordinate of the solution of the system of equations? 3x+2y=25 x+y=0
 2 years ago
 2 years ago

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solve the second equation for x. Let me know what you get..
 2 years ago

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if you add something to each side of an equation does anything really change, besides the way the equation looks?
 2 years ago

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7x=7 if x=1 then this equation is true, correct? if we add 3 to each side 7x+3=10 and x is still 1, the equation is still true just looks different
 2 years ago

ChmE Group TitleBest ResponseYou've already chosen the best response.0
we want to get x by itself and positive the easiest way to do that is to add x to each side of the equation. y  x = 0 y  x + x = 0 + x
 2 years ago

ChmE Group TitleBest ResponseYou've already chosen the best response.0
y=x or x=y doesn't matter how you write it
 2 years ago

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Now that we know this. we can substitute the x's for a y. This is called the substitution method. 3(y) + 2y = 25 Now solve for y
 2 years ago
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