$\,-5\,x \,-6 +\,8\,x =$ ?

$\,-5\,x +\,2\,x$ $\,3\,x \,-6$ $\,-13\,x \,-6$ $\,13\,x \,-6$ $\,-3\,x$

$\,7\,x +\,7\,y +\,5\,y \,-2\,x=$ ?

$\,5\,x +\,12\,y$ $\,5\,x \,-2\,y$ $\,14\,xy +\,3\,yx$ $\,9\,x +\,2\,y$ $\,9\,x +\,12\,y$

$\,6 +\,5\times\,8\,x +\,5 =$ ?

$\,40\,x +\,11$ $\,40\,x +\,1$ $\,88\,x +\,5$ $\,13\,x +\,11$ $\,-40\,x +\,11$

$\,-7\,x +\,6 \,-\,x +\,5 +\,3\,x=$ ?

$\,6\,x$ $\,-3\,x \,-1$ $\,-5\,x \,-1$ $\,-5\,x +\,11$ $\,-11\,x +\,11$ $\,-4\,x$

$\,-6 +\,3\,x +\,2\,y \,-\,x \,-3=$ ?

$\,-4\,x +\,2\,y \,-3$ $\,2\,x +\,2\,y \,-3$ $\,4\,xy \,-9$ $\,2\,x \,-2\,y \,-9$ $\,2\,x +\,2\,y \,-9$

$\,-6\times \,x \times \,9 + \,x \times (\,-5\,x\,) =$ ?

$\,-5\,\,x^2 \,-54\,x$ $\,5\,\,x^2 \,-54\,x$ $\,-5\,\,x^2 +\,54\,x$ $\,-5\,\,x^2 +\,3\,x$ $\,-59\,\,x^2$

$\,5\,x \,-9\,\,x^2 +\,2 +\,2\,\,x^2 \,-3=$ ?

$\,-7\,\,x^2 +\,5\,x \,-1$ $\,-\,\,x^2 +\,5\,x \,-7$ $\,-11\,\,x^2 +\,5\,x \,-1$ $\,11\,\,x^2 +\,5\,x \,-5$ $\,-2\,\,x^2 \,-1$

$\,7\,y \times \,7\,x +\,6\,xy =$ ?

$\,20\,xy$ $\,43\,xy$ $\,7\,y +\,7\,x +\,6\,xy$ $\,55\,xy$ $\,-43\,xy$