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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.
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 55×7.95+15×7.86+90x = 160×7.98 .
Question type: Equation
Solution:Original question:
| 55 | × | 159 20 | + | 15 | × | 393 50 | + | 90 | x | = | 160 | × | 399 50 |
| Left side of the equation = | 1749 4 | + | 1179 10 | + | 90 | x |
| = | 11103 20 | + | 90 | x |
11103 20 | + | 90 | x | = | 160 | × | 399 50 |
| Right side of the equation = | 6384 5 |
11103 20 | + | 90 | x | = | 6384 5 |
Transposition :
| 90 | x | = | 6384 5 | − | 11103 20 |
Combine the items on the right of the equation:
| 90 | x | = | 14433 20 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 14433 20 | ÷ | 90 |
| = | 14433 20 | × | 1 90 |
| = | 4811 20 | × | 1 30 |
We obtained :
| x | = | 4811 600 |
Convert the result to decimal form :
| x | = | 8.018333 |