x+ 65,27=72,6
x-43,502=21,73
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\(x+65,27=72,6\)
\(x=72,6-65,27\)
\(x=7,33\)
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\(x-43,502=21,73\)
\(x=21,73+43,502\)
\(x=65,232\)
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\(x\times6,3=187\)
\(x=187:6,3\)
\(x=\dfrac{1870}{63}\)
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\(1602:x=7,2\)
\(x=1602:7,2\)
\(x=222,5\)
a/ x+65,27=72,6
x=72,6-65,27
x=7,33
b/x-43,502=21,73
x=21,73+43,502
x=65,232
c/x.6,3=187
x=187:6,3
x=29,682....
d/ 1602:x=7,2
x=1602:7,2
x=222,5
\(X+65,27=72,6\\ X=72,6-65,27=7,33\\ ---\\ X-43,502=21,73\\ X=21,73+43,502=65,232\\ ---\\ X.6,3=187\\ X=\dfrac{187}{6,3}=\dfrac{1870}{63}\\ ---\\ 1602:X=7,2\\ X=1602:7,2=222,5\)
\(x:\dfrac{3}{7}=25,6\times3\)
\(x:\dfrac{3}{7}=76,8\)
\(x=76,8\times\dfrac{3}{7}\)
\(x=\dfrac{1152}{35}\)
x + 4,5 = 15,4 x 2,3
x + 4,5 = 35,42
x = 35,42 - 4,5
x = 30,92
x : 3,7 - 25,6 x 3 = ?
\(x:\dfrac{4}{7}=\dfrac{6}{7}-\dfrac{1}{3}\\ \Rightarrow x:\dfrac{4}{7}=\dfrac{18}{21}-\dfrac{7}{21}\\ \Rightarrow x:\dfrac{4}{7}=\dfrac{11}{21}\\ \Rightarrow x=\dfrac{11}{21}\times\dfrac{4}{7}\\ \Rightarrow x=\dfrac{44}{147}\)
\(x-\dfrac{3}{5}=\dfrac{2}{3}\times\dfrac{1}{5}\\ \Rightarrow x-\dfrac{3}{5}=\dfrac{2}{15}\\ \Rightarrow x=\dfrac{2}{15}+\dfrac{3}{5}\\ \Rightarrow x=\dfrac{2}{15}+\dfrac{9}{15}\\ \Rightarrow x=\dfrac{11}{15}\)
x+ 65,27=72,6
x = 72,6 - 65,27
x = 7,33
x-43,502=21,73
x = 21,73 + 43,502
x = 65,232
x = 72,6 - 65,27 = 7,33
x = 21,73 + 43,502 = 65,232