Question

Decrease the sum of x and y by z

Answer 1

Step-by-step explanation:

Hello,

sum = x + y

decrease by z

hence z - ( x + y )

Answer 2

Answer:

z- ( x+y)

Step-by-step explanation:

the sum of x and y = ( x+y)

decrease by z

so, the answer is z- ( x+y)