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    Current location:Equations > Monovariate Equation > The history of univariate equation calculation > Answer

    Overview: 1 questions will be solved this time.Among them
           ☆1 equations

[ 1/1 Equation]
    Work: Find the solution of equation [(100-m)÷10×6+(100-m)÷15×6]+m÷6 = (100-m)÷10×2+m÷2 .
    Question type: Equation
    Solution:Original question:
     ((100 m ) ÷ 10 × 6 + (100 m ) ÷ 15 × 6) + m ÷ 6 = (100 m ) ÷ 10 × 2 + m ÷ 2
    Remove the bracket on the left of the equation:
     Left side of the equation = (100 m ) ÷ 10 × 6 + (100 m ) ÷ 15 × 6 +
1
6
m
                                             = (100 m ) ×
3
5
+ (100 m ) ×
2
5
+
1
6
m
                                             = 100 ×
3
5
m ×
3
5
+ (100 m ) ×
2
5
+
1
6
m
                                             = 60 m ×
3
5
+ (100 m ) ×
2
5
+
1
6
m
                                             = 60
13
30
m + (100 m ) ×
2
5
                                             = 60
13
30
m + 100 ×
2
5
m ×
2
5
                                             = 60
13
30
m + 40 m ×
2
5
                                             = 100
5
6
m
    The equation is transformed into :
     100
5
6
m = (100 m ) ÷ 10 × 2 + m ÷ 2
     Right side of the equation = (100 m ) ×
1
5
+ m ×
1
2
    The equation is transformed into :
     100
5
6
m = (100 m ) ×
1
5
+
1
2
m
    Remove the bracket on the right of the equation:
     Right side of the equation = 100 ×
1
5
m ×
1
5
+
1
2
m
                                               = 20 m ×
1
5
+
1
2
m
                                               = 20 +
3
10
m
    The equation is transformed into :
     100
5
6
m = 20 +
3
10
m

    Transposition :
      -
5
6
m
3
10
m = 20100

    Combine the items on the left of the equation:
      -
17
15
m = 20100

    Combine the items on the right of the equation:
      -
17
15
m = - 80

    By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
     80 =
17
15
m

    If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :
     
17
15
m = 80

    The coefficient of the unknown number is reduced to 1 :
      m = 80 ÷
17
15
        = 80 ×
15
17

    We obtained :
      m =
1200
17
    This is the solution of the equation.

    Convert the result to decimal form :
      m = 70.588235



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