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The equation x + 1/x = 3 (x ≠ 0) is expressed as a quadratic equation in the form of ax² + bx + c = 0. The value of a – b + c is :
Solve for x and y : 3x + 5y = 8 5x – 3y = 2
Which of the following equations is a quadratic equation ?
Find the value of c for which the following pair of linear equations has infinitely many solutions : cx + 3y = c – 3 12x + cy = c
Solve for x and y : 3x + 2y = 65 2x + 3y = 60
Solve graphically the following pair of linear equations : 2x – y = 2 and 4x – y = 4 Also, write the coordinates of the points where the lines represented by these equations cut the y-axis.
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