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4≤3m-1╱2≤7怎样等于3≤m≤5?
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Solve an equation, inequality or a system. Example: 2x-1=y,2y+3=x. 1: 2: 3: 4: 5: 6: 7: 8: 9: 0., < > ≤: ≥ ^ √: ⬅: : F _ ÷ | (* / ⌫ A: ↻: x: y = +-G
For example, if you type in x^3 to enter the power x 3, press to return to the base before entering another term (e.g. x 3 +3x). If you don't, then your expression will look like this: x 3+3x . When you press the ( key, both left and right parenthesis are created, and the cursor is placed inside them.
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Example: 4x+2=2x+12 Example (Click to try) 4x+2=2x+12 How to solve your equation. To solve your equation using the Equation Solver, type in your equation like x+4=5. The solver will then show you the steps to help you learn how to solve it on your own. Solving Equations Video Lessons ...
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4(3) - 2 = 3(3) + 1. 12 - 2 = 9 + 1. 10 = 10. Ans. 3 is a solution. The first-degree equations that we consider in this chapter have at most one solution. The solutions to many such equations can be determined by inspection. Example 2 Find the solution of each equation by inspection. a. x + 5 = 12 b. 4 · x = -20. Solutions a. 7 is the solution ...