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\(460+85.4=\)\(\left(x+200\right).4\)
\(460+340=\left(x+200\right).4\)
\(800\) \(=\left(x+200\right).4\)
\(\Rightarrow\left(x+200\right).4=800\)
\(\left(x+200\right)\) \(=800:4\)
\(x+200\) \(=200\)
\(x\) \(=200-200\)
\(x\) \(=0\)
Vậy x = 0
ta có 460+85.4=(x-200):4
<->460+340=(x-200):4
<-> 800=(x-200):4
<->800.4=x-200
->x=3200+200=3400
Ta có: 460+85,4=(x-200):4
suy ra 460+340=(x-200):4
suy ra 800=9x-200):4
suy ra 800:4=x-200
suy ra x=3200+200=3400
a) 460 + 85 * 4 = ( x + 200 ) * 4
460 + 340 = ( x + 200 ) * 4
800 = ( x + 200 ) * 4
x + 200 = 200
x = 0
b) x + 5 * 2 - ( 32 + 16 * 3 : 16 - 15 ) = 0
x + 10 - ( 32 + 3 - 15 ) 0
x + 10 - 20 = 0
x - 10 = 0
x = 10
a) \(460+85.4=\left(x+200\right).4\)
\(\Rightarrow460+340=4x+800\)
\(\Rightarrow-4x=800-460-340\)
\(\Rightarrow-4x=0\)
\(\Rightarrow x=0\)
Vậy x = 0
b) \(x+5.2-\left(32+16.3:16-15\right)=0\)
\(\Rightarrow x+10-\left(32+3-15\right)=0\)
\(\Rightarrow x+10-20=0\)
\(\Rightarrow x-10=0\)
\(\Rightarrow x=10\)
Vậy x = 10
a. 5(x+35)=515
=> x+35=515:5
=> x+35=103
=> x = 103-35
=> x = 68
b. (x+40).15=75.12
=>(x+40).15=900
=>x+40=900:15
=>x+40=60
=>x=60-40
=>x=20
c.460+85.4=(x+200):4
=>460+340=(x+200):4
=>800=(x+200):4
=>800.4=x+200
=>3200=x+200
=>x=3200-200
=>x=3000
a: \(\Leftrightarrow5x-42=251\)
=>5x=293
hay x=293/5
b: \(\Leftrightarrow20-x=20\)
hay x=0
c: \(\Leftrightarrow x-4300-\dfrac{1}{50}=4250\)
\(\Leftrightarrow x=\dfrac{427501}{50}\)
d: =>(x+200):4=460-340=120
=>x+200=480
hay x=280
e: =>5+15(x+1)=500-480=20
=>15(x+1)=15
=>x+1=1
hay x=0
\(460+85.4=\left(x+200\right):2\)
\(460+340=\left(x+200\right):4\)
\(800=\left(x+200\right):4\)
\(\left(x+200\right):4=800\)
\(x+200=800.4\)
\(x+200=3200\)
\(x=3200-200\)
\(x=3000\)
\(5^x=125\)
\(5^x=5^3\)
Vì \(5=5\)
\(\Rightarrow x=3\)
5x = 125
x = 3
460 + 340 = (x + 200) : 4
800 = (x + 200) : 4
x + 200 = 800 : 4
x + 200 = 200
x = 200 - 200
x = 0
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