Question

5x-9y-42=?(x+6)-9(y+?)

Answer 1

Answer:

5 8

Step-by-step explanation:

Coefficient of x should be 5 so first ? should be 5 let the second ? = z

5×6-9×z=-42

30+42=9z

z=8

Answer 2

Answer:

5x-9y-42=5(x+6)-9(y+8)

Step-by-step explanation:

given 5x-9y-42=5x-9y-72+30

                        =5x+30-9y-72

                        =5(x+6)-9(y+8)

                      hence 5x-9y-42=5(x+6)-9(y+8)