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OpenStudy (anonymous):
solve by substitution method x+6y=50 -5x+5y+15
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OpenStudy (anonymous):
your second equation is incorrect
OpenStudy (anonymous):
-5x+5y=-5
OpenStudy (anonymous):
whoops, lost in translation
OpenStudy (anonymous):
x+6y=50 x=50-6y------eqn 1 now, -5(50-6y) +5y=-5 -250+30y+5y=-5 35y=245 y=7 then, x=50-6*7 x=8
OpenStudy (anonymous):
just plug in x = 50 -6y in second eqn - 5(50 -6y) + 5 y = -5 -50 +6y +y = -1 7y = 49 y = 7 so, x = 50 -6y =50 - 42 = 8
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OpenStudy (anonymous):
y=7 x=8
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