Question

What should be added to -7xy to get 10xy - 5z ?​

Answer 1

Answer:

$let \: a \: be \: added \: to \: - 7xy \: to \: get \\ 10xy - 5z \\ \\ according \: to \: the \: question \\ \\ - 7xy + a = 10xy - 5z \\ \\ = >a = 10xy + 7xy - 5z \\ \\ = > a = 17xy - 5z$

➡ So 17xy - 5z should be added to - 7xy to get 10xy - 5z.

hope it helps uH ✌

Answer 2

Answer:

17xy - 5z should be added from -7xy to get 10xy - 5z.

   Step-by-step explanation:

soln,

let the added number be x.

now,

or,   -7xy+x=10xy-5z

or,   x=10xy-5z+7xy

or,   x= 10xy + 7xy -5z

 ∴   x= 17xy-5z