7,75-(0,5 nhân x:5:6,2)= 5
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=> 0,5.x:5-6,2=7,75-5
=> 0,5.x:5=2,75+6,2
=> 0,5.x=8,95.5
=> x=44,75:0,5
=> x=89,5
\(7,75-\left(0,5\cdot x:5-6,2\right)=5\)
\(0,5\cdot x:5-6,2=7,75-5\)
\(0,5\cdot x:5-6,2=2,75\)
\(0,5\cdot x:5=2,75+6,2\)
\(0,5\cdot x:5=8,95\)
\(0,1\cdot x=8,95\)
\(x=8,95:0,1\)
\(x=89,5\)
7.75 - (0.5 * x : 5 - 6.2) = 5
0.5x : 5 - 6.2 = 2.75
0.5x : 5 = 8.95
0.5x = 44.75
x = 89.5
7,75 - (0,5 x X : 5 - 6,2) = 5
0,5x X:5-6,2=7,75-5
0,5x X:5-6,2=2,75
X:5-6,2=2,75:0,5=5,5
5-6,2=X:5,5
1,2=X:5,5
X=5,5x1,2
X=6,6
\(7,75-\left(0,5\times y\div5-6,2\right)=5\)
\(0,5\times y\div5-6,2=7,75-5=2,75\)
\(0,5\div5\times y-6,2=2,75\)
\(0,1\times y=2,75+6,2=8,95\)
\(\dfrac{1}{10}y=8,95\)
\(y=8,95\times10=89,5\)
\(y\div6\times7,2+1,3\times y+y\div2+15=19,95\)
\(1,2\times y+1,3\times y+0,5y=19,95-15=4,95\)
\(y\left(1,2+1,3+0,5\right)=4,95\)
\(2y=4,95\)
\(y=4,95\div2=2,475\)
6,3 x y + 3,7 x y = 100
(6,3 + 3,7) x y = 100
10 x y = 100
y = 100 : 10
y = 10
7,75 - (0,5 x y : 5 - 6,3) = 1,75
0,5 x y : 5 - 6,2 = 7,75 - 1,75
0,5 x y : 5 - 6,2 = 6
0,5 x y : 5 = 6 + 6,2
0,5 x y : 5 = 12,2
0,5 x y = 12,2 x 5
0,5 x y = 61
y = 61 : 0,5
y = 122
\(6,3\times y+3,7\times y=100\)
\(\Rightarrow y\times\left(6,3+3,7\right)=100\)
\(\Rightarrow y\times10=100\)
\(\Rightarrow y=100:10=10\)
\(7,75-\left(0,5\times y:5-6,2\right)=1,75\)
\(\Rightarrow0,5\times y:5-6,2=7,75-1,75\)
\(\Rightarrow0,5\times y:5-6,2=6\)
\(\Rightarrow0,5\times y:5=6+6,2\)
\(\Rightarrow0,5\times y:5=12,2\)
\(\Rightarrow y:5=12,2:0,5\)
\(\Rightarrow y:5=24,4\)
\(\Rightarrow y=24,4\times5=122\)
\(7,75-\left(0,5.x:5:6,2\right)=5\)
\(\left(0,5x:5:6,2\right)=7,75-5\)
\(\left(0,5.x:6,2\right)=2,75\)
\(x:6,2=2,75:0,5\)
\(x:6,2=5,5\)
\(x\) \(=5,5.6,2\)
\(x\) \(=34,1\)