Question

Find the value of Y in equation X+Y=12,when X=5

Answer 1

X+Y=12

USING X=5,

5+Y=12

Y=12-5

Y=7

Answer 2

$x + y = 12$

Putting x=5;

$5 + y = 12 \\ = > y = 12 - 5 \\ = > y = 7$