Question

pls answer this 2 question correctly pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls ​

Answer 1

Answer:

14) (a) -1/5    

15) 0

Step-by-step explanation:

14) (a) ( 3b - 6a ) / ( 30a - 15b )

=> 3 ( b - 2a ) / 15 ( 2a - b )

=> b - 2a / 5 ( 2a - b )

=> - ( 2a - b ) / 5 ( 2a - b )

=> -1 / 5

(b) FORMULA AT END (maths.jpg)