Question

Write the standard form of the equation.

Answer 1

Ax+by=c
y=x+3

subtract x from both sides
Y-x=x-x+3
Y-x=3

-1•(y-x)=-1•3
-y+x=-3

Reorder:

X-y=-3

I’m not sure if it’s 100% correct but that’s all I can do