Question

X+Y=90 X-Y=12 PLS ANSWER THIS FAST

Answer 1

Answer:

x=51,y=39

Step-by-step explanation:

x+y=90. -(1)

x-y=12. -(2)

on adding equation 1 and 2,we get

x+y=90

+(x-y=12)

2x=102

x=102/2

x=51

putting x=51 in equation 1, we get

51+y=90

y=90-51

y=39