\(\left(4,5-2x\right).1\dfrac{4}{7}+\dfrac{11}{14}\)
\(=\dfrac{99}{14}-\dfrac{22}{7}x+\dfrac{11}{14}\)
\(=\left(\dfrac{99}{14}+\dfrac{11}{14}\right)-\dfrac{22}{7}x\)
\(=\dfrac{55}{7}-\dfrac{22}{7}x\)
\(=\dfrac{33}{7}+\dfrac{22}{7}.\left(1-x\right)\)
(4,5-2x) * (-1 4/7) = 11/14
\(\left(4,5-2x\right).1\dfrac{4}{7}=\dfrac{11}{14}\)
\(\left(4,5-2x\right).\left(-1\dfrac{4}{7}\right)=\dfrac{11}{14}\)
Tìm x:
\(\left(4,5-2x\right).1\dfrac{4}{7}=\dfrac{11}{14}\)
tìm x biết :
a, 1/2x - 3/4 = 14/9 .3/7
b, (4,5 -2x ) (-1 4/7 ) =11/14
( -1 4/7 là hỗn số nhà)
(4,5-2x) * (-1và 4/7) = 11/14
tìm x,biết
a, 1/12x-75%x=-1/2/3
b,(4,5-2x)(-1/4/7)=11/14
c,(-2x/5+1):(-5)=-1/25
Tìm x, biết:
a) (2,8x - 32) : 2/3 = -90
b) (4,5 - 2x) . 1 4/7(hỗn số) = 11/14
(4,5-2x).12/7=11/14
