Still on simultaneous equation, today will we go deeper. Question and answers will  be on the image below. 
They will be little of simplification before getting to the simultaneous equation 
 
[MATHEMATICS] SIMULTANEOUS EQUATION QUESTIONS AND SOLUTION PART 2 Img_2013

Second question and answers shown below
[MATHEMATICS] SIMULTANEOUS EQUATION QUESTIONS AND SOLUTION PART 2 Img_2014

Stay tuned for more. It's your girl Merci