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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 0.9*26.28*270*36+19.55*270*(x-36) = 308*443+0.9*402*440-0.9*509*459-(660*(1.25x-61))/1.25x .
    Question type: Equation
    Solution:Original question:
     
9
10
×
657
25
× 270 × 36 +
391
20
× 270( x 36) = 308 × 443 +
9
10
× 402 × 440
9
10
× 509 × 459(660(
5
4
x 61)) ÷
5
4
× x
     Left side of the equation =
5747436
25
+
10557
2
( x 36)
    The equation is transformed into :
     
5747436
25
+
10557
2
( x 36) = 308 × 443 +
9
10
× 402 × 440
9
10
× 509 × 459(660(
5
4
x 61)) ÷
5
4
× x
    Remove the bracket on the left of the equation:
     Left side of the equation =
5747436
25
+
10557
2
x
10557
2
× 36
                                             =
5747436
25
+
10557
2
x 190026
                                             =
996786
25
+
10557
2
x
    The equation is transformed into :
     
996786
25
+
10557
2
x = 308 × 443 +
9
10
× 402 × 440
9
10
× 509 × 459(660(
5
4
x 61)) ÷
5
4
× x
     Right side of the equation = 136444 + 159192
2102679
10
(660(
5
4
x 61)) ×
4
5
x
                                               =
853681
10
(660(
5
4
x 61)) ×
4
5
x
    The equation is transformed into :
     
996786
25
+
10557
2
x =
853681
10
(660(
5
4
x 61)) ×
4
5
x
    Remove the bracket on the right of the equation:
     Right side of the equation =
853681
10
660(
5
4
x 61) ×
4
5
x
                                               =
853681
10
528(
5
4
x 61) x
                                               =
853681
10
528 ×
5
4
x x + 528 × 61 x
                                               =
853681
10
660 x x + 32208 x
    The equation is transformed into :
     
996786
25
+
10557
2
x =
853681
10
660 x x + 32208 x

    The solution of the equation:
        x1≈-1.624773 , keep 6 decimal places
        x2≈42.427046 , keep 6 decimal places
    
    There are 2 solution(s).


解程的详细方法请参阅:《方程的解法》



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