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OpenStudy (rayford):
2x+y=6 -4x+2y=4 solve using the elimination method
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OpenStudy (anonymous):
2(2x+y)=2(6) 4x+2y=12 add them -4x+2y=4 -4x+4x+2y+2y=16 4y=16
OpenStudy (anonymous):
elimination mean's solve for one variable. this can be done by simple subtraction of on equation from the other.
OpenStudy (anonymous):
divide both sides by 4 and you got your y. Use that y and plug it in into any equation and then solve for x
OpenStudy (rayford):
thank youits! 1,4!
OpenStudy (rayford):
may you answer another?
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OpenStudy (anonymous):
good job mate!
OpenStudy (anonymous):
Yeah just post it in another question
OpenStudy (rayford):
x+2y=10 x-y=4 use substituion
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