nschavez123
19.10.2019 •
Mathematics
5x+y=-1 and y-4x=3 solve by substitution
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Ответ:
Substitute this into the other equation in the place of y
5x-1-4x=3
X-1=3
X=4
Substitute this into the original equation
Y=5(4)-1
Y=19
Ответ:
5 (wait i screwed up) its 23
Step-by-step explanation: