Equations
Fold
Math OP
Unfold
Linear algebra
Unfold
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 20x+(x/(2/3))*30*3 = 176.9 .
Question type: Equation
Solution:Original question:
| 20 | x | + | ( | x | ÷ | ( | 2 | ÷ | 3 | ) | ) | × | 30 | × | 3 | = | 1769 10 |
| 20 | x | + | x | ÷ | ( | 2 | ÷ | 3 | ) | × | 30 | × | 3 | = | 1769 10 |
| 20 | x | + | x | ÷ | ( | 2 | ÷ | 3 | ) | × | 90 | = | 1769 10 |
| Multiply both sides of the equation by: | ( | 2 | ÷ | 3 | ) |
| 20 | x | ( | 2 | ÷ | 3 | ) | + | x | × | 90 | = | 1769 10 | ( | 2 | ÷ | 3 | ) |
| 20 | x | × | 2 | ÷ | 3 | + | x | × | 90 | = | 1769 10 | ( | 2 | ÷ | 3 | ) |
| 20 | x | × | 2 | ÷ | 3 | + | x | × | 90 | = | 1769 10 | × | 2 | ÷ | 3 |
40 3 | x | + | x | × | 90 | = | 1769 15 |
310 3 | x | = | 1769 15 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 1769 15 | ÷ | 310 3 |
| = | 1769 15 | × | 3 310 |
| = | 1769 5 | × | 1 310 |
We obtained :
| x | = | 1769 1550 |
Convert the result to decimal form :
| x | = | 1.14129 |