Question

 a)2015 :x  +53 = 456 

b)x +9,44 =18,36

c)x -3/4 =6x1/24

Answer 1

Câu a

2015 :x+53=456

2015 :x=456 - 53

2015: x=403

X =2015: 403

X=5

B)x+ 9, 44= 18, 36

X = 18, 36 - 9, 44

X = 8, 92

Vậy x bằng 8, 92

Answer 2

a) 2015:x+53=456

    2015:x       =456-53

    2015:x       =403

             x       =2015:403

             x       =5

b) x+9,44=18,36

     x         =18,36-9,44

     x          =8,92

c)x-\(\frac{3}{4}\)=6x\(\frac{1}{24}\)

x-\(\frac{3}{4}\)  = \(\frac{1}{4}\)

x             =\(\frac{1}{4}+\frac{3}{4}\)

x            =1

Answer 3

\(a,2015:x+53=456\)

\(\Leftrightarrow2015:x\)\(=456-53\)

\(\Leftrightarrow2015:x\)\(=403\)

 \(\Leftrightarrow x\)            \(=2015:403\)

\(\Leftrightarrow x\)\(\)         \(=5\)

                  \(b,x+9,44=18,36\)

                 \(\Leftrightarrow x\)          \(=18,36-9,44\)

                \(\Leftrightarrow x\)            \(=8,92\)

\(c,x-\frac{3}{4}=6\times\frac{1}{24}\)

\(\Leftrightarrow x-\frac{3}{4}=\frac{1}{4}\)

\(\Leftrightarrow x\)        \(=\frac{1}{4}+\frac{3}{4}\)

\(\Leftrightarrow x\)        \(=1\)

Answer 4

a, 2015:x+53=456

2015:x=456-53

2015:x=403

x=2015:403

x=5

Vậy x = 5

b, x+9,44=18,36

x=18,36-9,44

x=8,92

c, x-3/4=6×1/24

x-3/4=1/4

x=1/4+3/4

x=4/4

x=1

Answer 5

a) \(2015:x+53=456\)

\(\Rightarrow2015:x=456-53\)

\(\Rightarrow2015:x=403\)

\(\Rightarrow x=2015:403\)

\(\Rightarrow x=5\)

Vậy x = 5

b) \(x+9,44=18,36\)

\(\Rightarrow x=18,36-9,44\)

\(\Rightarrow x=8,92\)

Vậy x = 8,92

c) \(x-\frac{3}{4}=6\times\frac{1}{24}\)

\(\Rightarrow x-\frac{3}{4}=\frac{1}{4}\)

\(\Rightarrow x=\frac{1}{4}+\frac{3}{4}\)

\(\Rightarrow x=1\)

Vậy x = 1

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