\(x\times6,5+140=630,1\)
\(x\times6,5=630,1-140\)
\(x\times6,5=490,1\)
\(x=490,1:6,5\)
\(x=75,4\)
107,8 - x : 9,5 = 29,2
x : 9,5 = 107,8 - 29,2
x : 9,5 = 78,6
x = 78,6 x 9,5
x = 746,7
(45,4 + x) : 17,5 = 8,4
(45,4 + x) = 8,4 x 17,5
45,4 + x = 147
x = 147 - 45,4
x = 101,6
a)x*6.5=630.1-140
x*6.5=490.1
x=490.1/6.5
x=75.4
b)x/9.5=107.8-29.2
x/9.5=78.6
x=78.6*9.5
x=746.47
X x 6,5 + 140=630,1
X x 6,5=630,1-140
X x 6,5=490,1
X=490,1:6,5
X=75
a)\(X\times6,5+140=630,1\)
\(X\times6,5=630,1-140=490,1\)
\(X=490,1\div6,5=75,4\)
b)\(107,8-x\div9,5=29,2\)
\(x\div9,5=107,8-29,2=78,6\)
\(x=78,6\times9,5=746,7\)
c)\(\left(45,4+x\right)\div17,5=8,4\)
\(45,4+x=8,4\times17,5=147\)
\(x=147-45,4=101,6\)