Linear equations in two variables – Exercise 3.3 – Class 10

Solve the following pair of linear equations by the substitution method. (i) x + y = 14 x – y = 4 (ii) s – t = 3 s/3 + t/2 = 6 (iii) 3x – y = 3 9x – 3y = 9 (iv) 0.2 x + 0.3y = 1.3 0.4 x + 0.5&helli…