The equation v = -2000t 20,000 describes the value in dollars of a certain model of a car after it is t years old. if a car is worth $14,000, 3 years is the age of the car.
An equation is a mathematical statement consisting of two expressions joined by an equal sign. For example, 3x – 5 = 16 is an equation. Solving this equation gives the value x = 7 for the variable x.
Linear equations with only one variable are called simple or univariate linear equations. For example, \(3x + 2 = 23,x = 7.2x + 6 = 3x – 4,\). simple equation.
There are two types of equations: identities and constraints. The ID applies to all values of the variable. Constraint expressions apply only to specific values of variables.
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