`a,x.12,5=(32,6-10,4).5`
`x.12,5=22,2.5`
`x.12,5=111`
`x=111:12,5`
`x=8,88`
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\(e , x − 5 , 14 = ( 15 , 7 + 2 , 3 ) .2\)
\(x − 5 , 14 = 18.2\)
\(x − 5 , 14 = 36\)
\(x = 36 + 5 , 14\)
\(x = 41 , 14\)
`a, x xx 12,5 = (32,6 - 10,4) xx 5`
`x xx 12,5 = 111`
`=> x = 111/(12,5)`
`=> x = 8,88`.
`b, x - 5,14 = (15,7 + 2,3) xx 2`
` x - 5,14 = 18 xx 2`
`x - 5,14 = 36`
`x = 41,14`.