njorda7211
26.09.2019 •
Mathematics
4x+3y=13 solve by using substitution method. y=-x/4
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Ответ:
4x+3y=13
4x+3(-x/4)=13
4x-3x/4=13
times both sides by 4 because we hate fractions
16x-3x=52
13x=52
divide both sides by 13
x=4
sub back
y=-x/4
y=-4/4
y=-1
(x,y)
(4,-1)
the solution is (4,-1)
Ответ:
(( 4 round trips = 8 trips ))
(( 1493 x 8 ))
Hope this helps!