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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 70x+50*7.95 = 120*8.02 .
Question type: Equation
Solution:Original question:
| 70 | x | + | 50 | × | 159 20 | = | 120 | × | 401 50 |
| Left side of the equation = | 70 | x | + | 795 2 |
| 70 | x | + | 795 2 | = | 120 | × | 401 50 |
| Right side of the equation = | 4812 5 |
| 70 | x | + | 795 2 | = | 4812 5 |
Transposition :
| 70 | x | = | 4812 5 | − | 795 2 |
Combine the items on the right of the equation:
| 70 | x | = | 5649 10 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 5649 10 | ÷ | 70 |
| = | 5649 10 | × | 1 70 |
| = | 807 10 | × | 1 10 |
We obtained :
| x | = | 807 100 |
Convert the result to decimal form :
| x | = | 8.07 |