`245,68 - (X: 4 + X xx 6) = 43,14 xx 3 `
=> `245,68 - [X xx 0,25 + + X xx 6) = 129,42`
=> `245,68 - [X xx (0,25 + 6) = 129,42`
=> `X xx (0,25 + 6) = 245,68 - 129,42`
=> `X xx (0,25 + 6) = 116,26`
=> `X xx 6,25 = 116,26`
=> `X = 116,26 : 6,25`
=> `X = 18,6016`
245,68-(x:4+x*6)=43,14*3
245,68-(x:4+x*6)= 129.42
x:4+x*6 = 245,68 - 129,42
x:4+x*6 = 116.26
x . 0,25 + x * 6 = 116,26
6,25x = 116.26
x = 116.26 : 6,25
x= 18,6016
245,68−(X:4+X ×6)=43,14×3
245,68−[X×0,25++X×6)=129,42
245,68−[X×(0,25+6)=129,42
X×(0,25+6)=245,68−129,42
X×(0,25+6)=116,26
X×6,25=116,26
X =116,26:6,25
X =18,6016