Question

what will be the answer, when (y+z) - (x+y)
if :-
x+y =10
y+z=19

the answer is, z-x = 9
please tell how,i will mark your answer as brainliest if you explain it perfectly....please fast​

Answer 1

Step-by-step explanation:

We have to substitute

(y+z)= 19

(x+y)= 10

(y+z)-(x+y) = 19-10= 9

I guess you could understand this.

Answer 2

Answer:

z-x=9

Step-by-step explanation:

If

y+z=19..........i

x+y=10..........ii

So,from....i

y=19-z

then, y+z=10

so. 19-z+x=10

-z+x = -9

z-x= 9

HENCE , PROVED