6x+(9-8+7-6+5-4)=63.6
6x+3=63.6
6x=606
x=60.6:6
x=10.1
x+9+x-8+x+7+x-6+x+5+x-4=63.6
x(1+1+1+1+1+1)+ (9-8+7-6+5-4)=63,6
x6+3=63,6
x6=60,6
x=60.6:6
x=10,1
vậy x=10.1
ok xong
(X + 9)+(X-8)+(X+7)+(X-6)+(X+5)+(X-4)=63.6
(X+X+X+X+X+X)+(9-8+7-6+5-4) =63.6
(Xx6) + 3 =63.6
Xx6 =63.6-3
Xx6 =60.6
X =60.6:6
X =10.1
<X+9>+<X-8>+<X+7>+<X-6>+<X+5>+<X-4>=63,6
X+9+X-8+X+7+X-6+X+5+X-4=63,6
6X+3=63,6
6X=60,6
X=\(\frac{60,6}{6}\)
X=10,1
( x + 9) + ( x - 8) + (x + 7) + ( x - 6) + ( x + 5) + ( x - 4)= 63,6
x + 9 + x - 8 + x + x + 7 + x - 6 + x + 5 + x - 4 = 63,6
x + x + x + x + x + 9 - 8 + 7 - 6 + 5 - 4 = 63,6
6 x X + 3 = 63,6
6 x X = 63,6 - 3
6 x X = 60,6
x = 60,6 : 6
x = 10,1
nếu không hiểu gì thì hỏi mình nhé
1 hinh chu nhat co CR kem CD la 32 m va CR = 3/5 CD . Tinh Smanh dat hinh chu nhat
x +9+(x-8)+(x+7)+(x-6)+(x+5)+(x-4)=3(2x+1)
3(2x+1)=\(\frac{2.3.53}{5}\)
6x+3=63,6
6x=60,6
\(\frac{3\left(10x-101\right)}{5}\)=0
10x=101
x=10,1
\(\left(x+9\right)+\left(x-8\right)+\left(x+7\right)+\left(x-6\right)+\left(x+5\right)+\left(x-4\right)=63,6\)
\(x+9+x-8+x+7+x-6+x+5+x-4=63,6\)
\(\left(x+x+x+x+x+x\right)+\left(9-8+7-6+5-4\right)=63,6\)
\(6\times x+3=63,6\)
\(6\times x=63,6-3\)
\(6\times x=60,6\)
\(x=60,6:6\)
\(x=10,1\)
~ Hok tốt ~