Question

if the equation x+y=a is satisfied by x=1 and y=2 then the value of a .............................. (fil in the blanks)

Answer 1

x+y=a
1+2=3
so the value of x+y=3

Answer 2

hey friend!!!!


by putting X=1 and y=2


we get ---------


1+2=3

so a=3

have a great day