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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.
Linear equations with variables on both sides. Learn how to solve linear equations that have the variable on both sides of the equation. For example, solve 2x+5=6x-3. Why we do the same thing to both sides: Variable on both sides. Intro to equations with variables on both sides. Equations with variables on both sides: 20-7x=6x-6.