\(\left(x-3,5\right):3\frac{1}{2}=-1\frac{3}{4}+2,5\)
\(\left(x-3,5\right):3\frac{1}{2}=0,75\)
\(x-3,5=0,75x3\frac{1}{2}\)
\(x=\frac{21}{8}+3,5\)
\(x=6,125\)
= \(\left(x-3,5\right):\frac{7}{2}-2,5=\frac{-7}{4}\)
=> \(\left(x-3,5\right):\frac{7}{2}=\frac{-7}{4}+2,5=0,75\)
=> \(x-3,5=0,75x\frac{7}{2}=2,625\)
=> x= 2,625 + 3,5
x = 6,125
\(\left(x-\frac{7}{2}\right):\frac{7}{2}-\frac{5}{2}=\frac{-1}{4}\)
\(\left(x-\frac{7}{2}\right):\frac{7}{2}=\frac{-1}{4}+\frac{5}{2}\)
\(\left(x-\frac{7}{2}\right):\frac{7}{2}=\frac{9}{8}\)
\(\left(x-\frac{7}{2}\right)=\frac{9}{8}\cdot\frac{7}{2}\)
\(x-\frac{7}{2}=\frac{63}{16}\)
\(x=\frac{63}{16}+\frac{7}{2}\)
\(x=\frac{119}{16}\)
=>(X-3,5):7/2-2,5=-7/4
=>( X-7/2):7/2-5/2=-7/4
=>( X-7/2):7/2=-7/4+5/2
( x-7/2):7/2=3/4
X-7/2=3/4.7/2
X-7/2=21/8
X=21/8+7/2
X=49/8
