LINEAR EQUATIONS IN TWO VARIABLES
68 MATHEMATICS (iv) The equation 2x = y can be written as 2x – y + 0 = 0. Here a = 2, b = –1 and c = 0. Equations of the type ax + b = 0 are also examples of linear equations in two variables because they can be expressed as ax + 0.y + b = 0 For example, 4 – 3x = 0 can be written as –3x + 0.y + 4 = 0. Example 2 : Write each of the following as an equation in two …
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