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On line Solution of Monovariate Equation:
    Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
    It supports equations that contain mathematical functions.
    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 4×(0.8+0.0003×(1500+X))×(1500-X) = (0.6+0.0003×(X+100))×(X-100) .
    Question type: Equation
    Solution:Original question:
     4(
4
5
+
3
10000
(1500 + X ))(1500 X ) = (
3
5
+
3
10000
( X + 100))( X 100)
    Remove the bracket on the left of the equation:
     Left side of the equation = 4 ×
4
5
(1500 X ) + 4 ×
3
10000
(1500 + X )(1500 X )
                                             =
16
5
(1500 X ) +
3
2500
(1500 + X )(1500 X )
                                             =
16
5
× 1500
16
5
X +
3
2500
(1500 + X )(1500 X )
                                             = 4800
16
5
X +
3
2500
(1500 + X )(1500 X )
                                             = 4800
16
5
X +
3
2500
× 1500(1500 X ) +
3
2500
X (1500 X )
                                             = 4800
16
5
X +
9
5
(1500 X ) +
3
2500
X (1500 X )
                                             = 4800
16
5
X +
9
5
× 1500
9
5
X +
3
2500
X (1500 X )
                                             = 4800
16
5
X + 2700
9
5
X +
3
2500
X (1500 X )
                                             = 75005 X +
3
2500
X (1500 X )
                                             = 75005 X +
3
2500
X × 1500
3
2500
X X
                                             = 75005 X +
9
5
X
3
2500
X X
                                             = 7500
16
5
X
3
2500
X X
    The equation is transformed into :
     7500
16
5
X
3
2500
X X = (
3
5
+
3
10000
( X + 100))( X 100)
    Remove the bracket on the right of the equation:
     Right side of the equation =
3
5
( X 100) +
3
10000
( X + 100)( X 100)
                                               =
3
5
X
3
5
× 100 +
3
10000
( X + 100)( X 100)
                                               =
3
5
X 60 +
3
10000
( X + 100)( X 100)
                                               =
3
5
X 60 +
3
10000
X ( X 100) +
3
10000
× 100( X 100)
                                               =
3
5
X 60 +
3
10000
X ( X 100) +
3
100
( X 100)
                                               =
3
5
X 60 +
3
10000
X X
3
10000
X × 100 +
3
100
( X 100)
                                               =
3
5
X 60 +
3
10000
X X
3
100
X +
3
100
( X 100)
                                               =
57
100
X 60 +
3
10000
X X +
3
100
( X 100)
                                               =
57
100
X 60 +
3
10000
X X +
3
100
X
3
100
× 100
                                               =
57
100
X 60 +
3
10000
X X +
3
100
X 3
                                               =
3
5
X 63 +
3
10000
X X
    The equation is transformed into :
     7500
16
5
X
3
2500
X X =
3
5
X 63 +
3
10000
X X
    The equation can be reduced to :
     7500
16
5
X
3
2500
X X =
3
5
X 63 +
3
10000
X X

    
        X≈1311.403240 , keep 6 decimal places
    
    There are 1 solution(s).


解一元一次方程的详细方法请参阅:《一元一次方程的解法》



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