silveryflight
18.12.2019 •
Mathematics
Which below is the first step in solving the rational inequality? 3+x/10+x-8/10> =0 3+x> =8/10(10+x) 3+x/10+x(10/8)> =1 what common denominator can be used to write the left side as one rational expression?
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Ответ:
x-y=6
Use substitute property
x+y=4
-
x-y=6
=
2y=-2
Divided 2 to each side
2y/2=-2/2
y=-1
x+y=4
Substitute y with -1
x+(-1)=4
x-1=4
Add 1 to each side
x-1+1=4+1
x=5. As a result, the solution to this system of linear equation is (5,-1). Hope it help!