$\,8\,x +\,7\,y \,-\,y \,-7\,x=$ ?

$\,x \,-8\,y$ $\,x +\,6\,y$ $\,15\,x +\,8\,y$ $\,15\,xy \,-8\,yx$ $\,15\,x +\,6\,y$

$\,-2\times \,x \times (\,-5\,) + \,x \times (\,-8\,x\,) =$ ?

$\,-8\,\,x^2 \,-7\,x$ $\,-8\,\,x^2 +\,10\,x$ $\,-8\,\,x^2 \,-10\,x$ $\,2\,\,x^2$ $\,8\,\,x^2 +\,10\,x$

$ \,3\,x + \,9\,y - ( \,7\,x - \,4\,y)=$ ?

$\,-4\,x +\,5\,y$ $\,10\,x +\,5\,y$ $\,-4\,x +\,13\,y$ $\,-4\,x \,-5\,y$ $\,10\,x +\,13\,y$

$\,-2 +\,8\times\,5\,x +\,1 =$ ?

$\,-40\,x \,-1$ $\,30\,x +\,1$ $\,13\,x \,-1$ $\,40\,x \,-1$ $\,40\,x \,-3$

$\,-2\,x +\,7 \,-8\,x \,-3 +\,8\,x=$ ?

$\,14\,x \,-10$ $\,-18\,x +\,4$ $\,2\,x$ $\,-2\,x +\,4$ $\,8\,x$ $\,-2\,x \,-10$

$ \,2\,\,x^2 - ( \,5 + \,8\,\,x^2 + \,x)=$ ?

$\,-6\,\,x^2 +\,x +\,5$ $\,10\,\,x^2 \,-\,x \,-5$ $\,-6\,\,x^2 +\,x \,-5$ $\,10\,\,x^2 +\,x +\,5$ $\,-6\,\,x^2 \,-\,x \,-5$

$\,8\,x - ( - \,9\,\,x^2 - \,6 ) + \,7\,x=$ ?

$\,9\,\,x^2 +\,15\,x \,-6$ $\,-9\,\,x^2 +\,15\,x +\,6$ $\,9\,\,x^2 +\,15\,x +\,6$ $\,-9\,\,x^2 +\,15\,x \,-6$ $\,9\,\,x^2 +\,x +\,6$

$\,4\,x +\,8\,\,x^2 \,-2 +\,4\,\,x^2 +\,9=$ ?

$\,7\,\,x^2 +\,4\,x +\,12$ $\,-4\,\,x^2 +\,4\,x +\,11$ $\,4\,\,x^2 +\,4\,x +\,7$ $\,16\,\,x^2 +\,7$ $\,12\,\,x^2 +\,4\,x +\,7$

$\,4 + ( - \,3\,x + \,5) - ( \,3 - \,8\,x) =$ ?

$\,5\,x +\,12$ $\,5\,x \,-4$ $\,7\,x +\,4$ $\,5\,x +\,6$ $\,-11\,x +\,6$

$\,3\,x + (\,1 - \,5\,x + \,9\,y) =$ ?

$\,8\,x +\,9\,y +\,1$ $\,2\,x +\,9\,y \,-1$ $\,8\,x \,-9\,y \,-1$ $\,-2\,x \,-9\,y +\,1$ $\,-2\,x +\,9\,y +\,1$