4,5-2x=11/4:11/7
4,5 - 2x= 7/4
2x=9/2 - 7/4
2x= 18/4-7/4
2x=11/4
x=11/4:2
x=11/8
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4,5-2x=11/4:11/7
4,5 - 2x= 7/4
2x=9/2 - 7/4
2x= 18/4-7/4
2x=11/4
x=11/4:2
x=11/8
(4,5-2x).11/7=11/4
(4,5-2x).1 4/7+11/14
(4,5-2x) * (-1 4/7) = 11/14
(4,5-2x) * (-1và 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:
\(\left(4,5-2x\right).1\dfrac{4}{7}=\dfrac{11}{14}\)
(2,8 x -32):2/3=-90
( 4,5-2x)nhan1/4/7=11
(4,5-2x).12/7=11/14