The answer to Q1 along with an explanation is shown in the picture;
Having a look at all the questions, they are all essentially the same type so can all be solved similarly;
So by following the method and explanation, you should be able to do the rest of the questions.
Answer: third dot
Step-by-step explanation:
2x2 – 5x<span> – 3
thats the answer. </span>
Answer:
No solution
Step-by-step explanation:
<h3>Solving system of linear equations:</h3>
7x + 2y = 16 ----------------(I)
-21x - 6y = 24 -----------------(II)



So, the lines are parallel and has no solution
Answer: -21/4
Step-by-step explanation: