\(x+4,32=8,67\\ x=8,67-4,32=4,35\\ ---\\ x-3,64=5,86\\ x=5,86+3,64=9,5\\ ---\\ X:5,1=3-0,8\\ X:5,1=2,2\\ X=2,2.5,1=11,22\\ ---\\ 2,4.X=\dfrac{6}{5}.0,4\\ 2,4.X=0,48\\ X=\dfrac{0,48}{2,4}=0,2\\ ---\\ 96-\left(3,75:X\right)=94,5\\ 3,75:X=96-94,5\\ 3,75:X=1,5\\ X=3,75:1,5=2,5\\ ---\)
\(17.X=32,64:16\\ 17.X=2,04\\ X=\dfrac{2,04}{17}=0,12\\ ---\\ X.4+9,6=26,4\\ X.4=26,4-9,6\\ X.4=16,8\\ X=\dfrac{16,8}{4}=4,2\\ ---\\ X.3,5-1,2=23,45-1,2\\ X.3,5=23,45\\ X=\dfrac{23,45}{3,5}=6,7\\ ----\\ 9,15.X+2,85.X=48\\ \left(9,15+2,85\right).X=48\\ 12.X=48\\ X=\dfrac{48}{12}=4\\ ----\\ 2,5.X+3,5.X+4.X=300\\ \left(2,5+3,5+4\right).X=300\\ 10X=300\\ X=\dfrac{300}{10}=30\\ ---\\ \left(X+3,5\right):7,7=30,6\\ X+3,5=30,6.7,7\\ X+3,5=235,62\\ X=235,62-3,5=232,12\)
a) +) => x= 8,67-4,32=4,35
+) => x= 5,86+3,64=9,5
+) => x= (3-0,8).5,1= 11,22
+) => x= 6/5 . 0,4 :2,4=0,2
b) +) => 3,75:x=1,5
=> x=3,75:1,5=2,5
+) => 17x=2,04
=> x=1,12
+) => 4x=26,4-9,6=16,8
=> x=4,2
c) +) => 3,5x=23,45
=> x=6,7
+) => x(9,15+2,85)=48
=> 12x=48 => x=4
+) => x(2,5+3,5+4)=300
=> 10x=300 => x=30
