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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 2.9x+8.65 = 1.2(x+9.9) .
Question type: Equation
Solution:Original question:
29 10 | x | + | 173 20 | = | 6 5 | ( | x | + | 99 10 | ) |
| Right side of the equation = | 6 5 | x | + | 6 5 | × | 99 10 |
| = | 6 5 | x | + | 297 25 |
29 10 | x | + | 173 20 | = | 6 5 | x | + | 297 25 |
Transposition :
29 10 | x | − | 6 5 | x | = | 297 25 | − | 173 20 |
Combine the items on the left of the equation:
17 10 | x | = | 297 25 | − | 173 20 |
Combine the items on the right of the equation:
17 10 | x | = | 323 100 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 323 100 | ÷ | 17 10 |
| = | 323 100 | × | 10 17 |
| = | 19 10 | × | 1 |
We obtained :
| x | = | 19 10 |
Convert the result to decimal form :
| x | = | 1.9 |