\(x:\dfrac{1}{5}=7\\ x=7\times\dfrac{1}{5}\\ x=\dfrac{7}{5}\\ ~\\ x\times\dfrac{2}{3}=9\\ x=9:\dfrac{2}{3}\\ x=\dfrac{27}{2}\\ ~\\ 1\dfrac{3}{7}+x=2\dfrac{1}{5}\\ \dfrac{10}{7}+x=\dfrac{11}{5}\\ x=\dfrac{11}{5}-\dfrac{10}{7}\\ x=\dfrac{27}{35}\\ ~\\ 4\dfrac{1}{3}-x=2\dfrac{2}{5}+1\dfrac{3}{5}\\ \dfrac{13}{3}-x=4\\ x=\dfrac{13}{3}-4\\ x=\dfrac{1}{3}\)
`x : 1/5 = 7`
`x=7 xx 1/5`
`x=7/5`
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`x xx 2/3 = 9`
`x=9 : 2/3`
`x=9xx3/2`
`x=13,5`
_____________________
`1 3/7 + x = 2 1/5`
`x = 2 1/5 - 1 3/7`
`x= 1 (-8)/35`
`x=27/35`
_________________
`4 1/3 - x = 2 2/5 + 1 3/5`
`4 1/3 - x = 3 5/5`
`4 1/3 - x = 4`
`13/3 - x = 4`
`x=13/3-4`
`x=1/3`
\(x:\dfrac{1}{5}=7\)
\(x=7\times\dfrac{1}{5}\)
\(x=\dfrac{7}{5}\)
\(x\times\dfrac{2}{3}=9\)
\(x=9:\dfrac{2}{3}\)
\(x=\dfrac{27}{2}\)
\(1\dfrac{3}{7}+x=2\dfrac{1}{5}\)
\(\dfrac{10}{7}+x=\dfrac{11}{5}\)
\(x=\dfrac{11}{5}-\dfrac{10}{7}\)
\(x=\dfrac{27}{35}\)
\(4\dfrac{1}{3}-x=2\dfrac{2}{5}+1\dfrac{3}{5}\)
\(\dfrac{13}{3}-x=\dfrac{12}{5}+\dfrac{8}{5}\)
\(\dfrac{13}{3}-x=4\)
\(x=\dfrac{13}{3}-4\)
\(x=\dfrac{1}{3}\)
x : 1/5=7
x = 7 x 1/5
x = 7/5
X x 2/3 = 9
x = 9 : 2/3
x = 9 x 3/2
x = 27/2
\(1\dfrac{3}{7}\)+ x =\(2\dfrac{1}{5}\)
10/7 + x = 11/5
x = 11/5 - 10/7
x = 27/35
\(4\dfrac{1}{3}\) - x = \(2\dfrac{2}{5}+1\dfrac{1}{5}\)
13/3 - x = (2+1)+(2/5+1/5) = \(3\dfrac{3}{5}\) = 18/5
x = 13/3 - 18/5
x = 65/15 - 54/15
x = 11/15
