Question

i want to ask if we multipy only one eq. with a number ..so that we can cancel a term ......is it necessary that the other eq. must be multiplied with same number OR another number..or we can left it as it is

Answer 1

No , it is not necessary , you can left the no. as it is because we want to cancelled it , so in elimination method , we can multiply only one equation with a number and left the other equation as it is.
Hope it helps dear........

Answer 2

yes it is necessary to multiple to 5 to cut the no. and find the value of v after you also find easily the value of p

I hope it helps you ☺
:-) please mark it brainlieist answer