Graphical and algebraic methods, consistency, applications.
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Q1 · Pair of Linear Equations in Two Variables · HARD
For what value of k will the equations 3x + 4y = 12 and kx + 12y = 30 have no solution?
Q2 · Pair of Linear Equations in Two Variables · EASY
The pair of equations x + y = 5 and x - y = 1 has solution:
Q3 · Pair of Linear Equations in Two Variables · MEDIUM
The pair of equations 2x + 3y = 7 and 4x + 6y = 14 has: