Toán Lớp 7: A) 3x +5/6 =x-4
B) 5x + 1/3 > -2x + -2/3
C)4x +4/5<3/2 -x
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Toán Lớp 7: A) 3x +5/6 =x-4
B) 5x + 1/3 > -2x + -2/3
C)4x +4/5<3/2 -x
Comments ( 2 )
$⇒2x=\dfrac{-29}{6}$
$⇒x=\dfrac{-29}{12}$
Vậy $x=\dfrac{-29}{12}$
$⇔7x>-1$
$⇔x>\dfrac{-1}{7}$
c,
$⇔5x<\dfrac{7}{10}$
$⇔x<\dfrac{7}{50}$