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OpenStudy (abbie):
solve for x. -3x+7y=2 -2x-3y=-4 A. x=-22/23 B. x=22/23 C. x=2/23 D. x=-2/23
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OpenStudy (abbie):
@agent0smith can you help me?
OpenStudy (abbie):
@skullpatrol
OpenStudy (abbie):
@KamiBug help?
OpenStudy (kamibug):
I know I did this in 8th grade but I don't remember it, sorry!
OpenStudy (texaschic101):
does it have to be done a certain way...elimination, substitution, matrix...or does it matter ?
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OpenStudy (texaschic101):
this is elimination -3x + 7y = 2 --->(3) -2x - 3y = -4 --->(7) -------------------- -9x + 21y = 6 (result of multiplying by 3) -14x - 21y = -28 (result of multiplying by 7) -------------------add -23x = -22 x = 22/23
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