book Maths Puzzle Numerical Ability

on the coordinate line L contains points (-3,-4)and(9,2)

What is the y- intercept of line L ? Show or explain your answer

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book Other Question

I need help with a question, Find the value of a in the equation

5
--- =
a+3

3
---
a-2


I think the answer is a= 2 3/8

Am I right, Can someone let me know?
please help me solve this equation:18w=9square