Simultaneous Linear Equation – Exercise 3.5.3 – Class IX

Solve the following system of equations by the method of substitution: (i) x + y = 10 x – y = 12 (ii)3x – 7y = 7 11x + 5y = 87 (iii) 3x – 4y = 10 4x + 3y = 5 (iv) 3a – 2b = 12 4a – 5b = 16 (v)&hell…