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OpenStudy (anonymous):
Solve the system, using substitution. 4x + y = 4 and y = 4 - 4x A. no solution B. infinitely many solutions
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hartnn (hartnn):
plug in y= 4-4x in your first equation 4x +y =4 what do u get?
hartnn (hartnn):
means replace 'y' in 4x+y = 4 by 4-4x
OpenStudy (anonymous):
have you tried to do what hartnn suggested ?
OpenStudy (anonymous):
B. Infinite solutions?
hartnn (hartnn):
yes! how did u get it ?
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OpenStudy (anonymous):
By plugging in.
hartnn (hartnn):
ok, thats correct :)
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