Mathematics
         
语言：中文    Language:English
Equations   
Unfold
Math OP  
Fold
Inequality
Mathematics
Fractions
Statistics
Prime factor
Fraction and Decimal Interactions
Lenders ToolBox
Linear algebra      
Unfold
Derivative function
Function image
Hot issues
Solution inequality：
    Directly input the univariate inequality (that is, the inequality containing only one variable), set the angular unit (radian or angle) of the trigonometric function, and click the "Next" button to obtain the solution set of the inequality.
    It supports mathematical functions (including trigonometric functions).
    Current location：Mathematical operation > History of Inequality Computation > Answer

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

[ 1/1 Equation]
    Work: Find the solution of equation (1.6x-x)×200+(1.3x-x)×100+(0.7x-x)×100 = 15000 .
    Question type: Equation
    Solution:Original question:
     (
8
5
 x − x ) × 200 + (
13
10
 x − x ) × 100 + (
7
10
 x − x ) × 100 = 15000
    Remove the bracket on the left of the equation:
     Left side of the equation =
8
5
 x × 200 − x × 200 + (
13
10
 x − x ) × 100 + (
7
10
 x − x ) × 100
                                             = 320 x − x × 200 + (
13
10
 x − x ) × 100 + (
7
10
 x − x ) × 100
                                             = 120 x + (
13
10
 x − x ) × 100 + (
7
10
 x − x ) × 100
                                             = 120 x +
13
10
 x × 100 − x × 100 + (
7
10
 x − x ) × 100
                                             = 120 x + 130 x − x × 100 + (
7
10
 x − x ) × 100
                                             = 150 x + (
7
10
 x − x ) × 100
                                             = 150 x +
7
10
 x × 100 − x × 100
                                             = 150 x + 70 x − x × 100
                                             = 120 x
    The equation is transformed into :
     120 x = 15000

    The coefficient of the unknown number is reduced to 1 :
      x = 15000 ÷ 120
        = 15000 ×
1
120
        = 125 × 1

    We obtained :
      x = 125
    This is the solution of the equation.



Your problem has not been solved here? Please go to the Hot Problems section!


Return



  New addition:Lenders ToolBox module（Specific location：Math OP > Lenders ToolBox ），welcome。