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Most linear equations are functions (that is, for every value of x, there is only one corresponding value of y). When you assign a value to the independent variable, x, you can compute the value of the dependent variable, y. You can then plot the points named by each (x,y) pair on a coordinate grid.
Here's how students are instructed to solve this equation today. Start with the equation: x = 1/(x â 1). Multiply each side of the equation by the expression x â 1: xÂ·(x â 1) = 1. Distribute the x across the expression x â 1: xÂ·x â xÂ·1 = 1. The variable x multiplied by itself is written as xÂ².