$\,x + (\,2 - \,2\,x + \,y) =$ ?

$\,x +\,y \,-2$ $\,-\,x +\,y +\,2$ $\,-\,x \,-\,y +\,2$ $\,3\,x \,-\,y \,-2$ $\,3\,x +\,y +\,2$

$ \,3\,\,x^2 - ( \,1 + \,\,x^2 + \,x)=$ ?

$\,4\,\,x^2 \,-\,x \,-1$ $\,2\,\,x^2 +\,x +\,1$ $\,2\,\,x^2 \,-\,x \,-1$ $\,2\,\,x^2 +\,x \,-1$ $\,4\,\,x^2 +\,x +\,1$

$\,9\,x - ( - \,3\,\,x^2 - \,7 ) + \,8\,x=$ ?

$\,3\,\,x^2 +\,17\,x \,-7$ $\,-3\,\,x^2 +\,17\,x \,-7$ $\,3\,\,x^2 +\,17\,x +\,7$ $\,3\,\,x^2 +\,x +\,7$ $\,-3\,\,x^2 +\,17\,x +\,7$

$\,6 + ( - \,3\,x + \,7) - ( \,9 - \,2\,x) =$ ?

$\,-\,x +\,22$ $\,-\,x +\,4$ $\,-3\,x +\,6$ $\,-5\,x +\,4$ $\,-\,x \,-10$

$ \,2\,x + \,6\,y - ( \,5\,x - \,2\,y)=$ ?

$\,-3\,x \,-4\,y$ $\,-3\,x +\,4\,y$ $\,-3\,x +\,8\,y$ $\,7\,x +\,4\,y$ $\,7\,x +\,8\,y$

$ \,7\,x - \,\,x^2 - ( - \,4\,\,x^2 + \,8\,x )=$ ?

$\,-5\,\,x^2 +\,15\,x$ $\,-5\,\,x^2 \,-\,x$ $\,3\,\,x^2 \,-\,x$ $\,5\,\,x^2 \,-\,x$ $\,3\,\,x^2 +\,15\,x$