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\(11\left(x-6\right)=4x+11\Leftrightarrow11x-4x=11+66\Leftrightarrow7x=77\Leftrightarrow x=11\)
11(x-6)=4x+11
=>11x-4x=11+66
=>7x=77
=>x=77:7
=>x=11
vậy x=11
11x(x-6)=(4*x)+11
11x-66=4x+11
11x-4x=66+11
7x=77
x=77:7
x=11
Vậy x=11
11x(X-6)=4xX+11
11xX-11x6=4xX+11
11xX-66=4xX+11
11xX=4xX+11+66
11xX-4xX=11+66
(11-4)xX=77
7xX=77
X=77:7
X=11
Bài làm
12.65 x X+X x 27.35=9
780 x X+X x 945 = 9
( 780+945 ) x X = 9
1725 x X = 9
X = 9:1725
X = \(\frac{9}{1725}\)
X = \(\frac{3}{575}\)
Vậy X = \(\frac{3}{575}\)
# Chúc bạn học tốt #
Xx(12,65+27,35)=9
Xx 40 =9
=>X=9:40
X=0,225
Còn câu kia thì mình chịu,sorry nhé
Học tốt
11 x X - 11 x 6 = 4 x X + 11
11 x x - 66 = 4 x X + 11
11 x X - 4 x X = 66 + 11
11 x X - 4 x X = 77
( 11 - 4 ) x X = 77
7 x X = 77
X = 77 : 7
X = 11
P/s : k mình nha !
\(6-2\left(x-1\right)=4\)
\(\Rightarrow2\left(x-1\right)=6-4\)
\(\Rightarrow2\left(x-1\right)=2\)
\(\Rightarrow x-1=1\)
\(\Rightarrow x=1+1=2\)
________________
\(2\cdot\left(x-2\right)+1=7\)
\(\Rightarrow2\cdot\left(x-2\right)=7-1\)
\(\Rightarrow2\cdot\left(x-2\right)=6\)
\(\Rightarrow x-2=3\)
\(\Rightarrow x=3+2=5\)
_______________
\(\left(2\cdot x-3\right)+4=9\)
\(\Rightarrow2\cdot x-3=5\)
\(\Rightarrow2\cdot x=3+5\)
\(\Rightarrow2\cdot x=8\)
\(\Rightarrow x=\dfrac{8}{2}=4\)
________________
\(\left(3\cdot x-2\right)-1=3\)
\(\Rightarrow3\cdot x-2=3+1\)
\(\Rightarrow3\cdot x-2=4\)
\(\Rightarrow3\cdot x=6\)
\(\Rightarrow x=\dfrac{6}{3}=2\)
a: =>2(x-1)=2
=>x-1=1
=>x=2
b: =>2(x-2)=6
=>x-2=3
=>x=5
c; =>2x-3=5
=>2x=8
=>x=4
d: =>3x-2=4
=>3x=6
=>x=2
e: =>2(6-x)=4
=>6-x=2
=>x=4
f: =>x-2=5
=>x=7
g: =>10-2x=4
=>2x=6
=>x=3
h: =>2x+4=3
=>2x=-1
=>x=-1/2
j: =>x+2=12
=>x=10
l: =>2x+3=3
=>2x=0
=>x=0
11 x (X-6)=4 x X +11
=> 11 x X - 11 x 6=4 x X +11
=> 11 x X - 66 = 4 x X+11
=> 11 x X - 4 x X = 11+66
=> (11-4) x X = 77
=> 7 x X=77
=> X=77:7
=> X=11
`1xx(x-6)=4xx x+11`
`11 xx x-11 xx 6=4xx x+11`
`11×x−66=4×x+11`
`11×x−4×x=11+66`
`(11−4)×x=77`
`7×x=77`
`x=11`
Vậy `x=11`