Problem 457

  Solving using the addition and multiplication principles. 7 + 7x < 14 The solution set is {x│x _ _}.   Solution:-   Add -7 both sides 7 – 7…

Problem 456

  Solve by the elimination method. 2x + 3y = 1 4x +6y = 2 What is the solution of the system?   Solution:-   Multiply the equation(1) by 2…

Problem 455

Solve the following system of equations. x +7y = 6 (1) x  = 3 – 7y (2) What is the solution of the system?   Solution:-   Put the value…