Какие значения может принимать
[tex]y[/tex]
если
[tex]4x + 3y = 8[/tex]
и
[tex] |y| < 12[/tex]
?
[tex]y[/tex]
если
[tex]4x + 3y = 8[/tex]
и
[tex] |y| < 12[/tex]
?
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Verified answer
|y|<12⇒ -12 < y < 12
4x=8-3y
-12 < y < 12
-36 < 3 y < 36
-36 <- 3 y < 36
8-36< 8 - 3 y <8+ 36 ⇒ -28 < 8 - 3 y < 44
-7< (8-3y)/4 < 11
-7 < x < 11
О т в е т. -12 < y < 12; -7 < x < 11