Question 79 (i)
Solve: 294−307
Given, 294−307=29×74×7−30×47×4 =20328−12028 =203−12028=8328
Question 79 (ii)
Solve: 513−−826
Solve the following pair of equations: 7x - 15y = 2 ; x + 2y = 3. Hence find 'm' in y = mx - 30/29