Q1 Solve the following systems of simultaneous linear equations by cross-multiplication method: (i) 3x + 2y = 4; 8x + 5y = 9 (ii) 3x - 7y + 10 = 0; y - 2x = 3.
Q2 Solve the following pairs of linear equations by cross-multiplication method: (i) x - y = a + b; ax + by = a2 - b 2 (ii) 2bx + ay = 2ab; bx - ay = 4ab.