2 plus 2y plus x plus x y = 2 plus3y plus 2x
(find how many X's there are and add them together and ten Y's and then single numbers)
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2+2y+x+xy=(x+2)(y+1)
xy(3x - 2y)(2x + 3y)
if you take a factor of (Y) you end up with Y(X+5Z-2).
(xy - 7)(x^2y^2 + 7xy + 49)
xy + x + y + 1 is an expression, not an equation. An expression cannot be solved.