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

$\,-26\,x$ $\,-11\,x \,-1$ $\,-17\,x +\,15$ $\,-11\,x +\,15$ $\,-12\,x$ $\,3\,x \,-1$

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

$\,-\,x \,-8$ $\,x \,-8$ $\,-13\,x$ $\,-3\,x \,-10\,x$ $\,-5\,x \,-8$

$\,8 \,-\,x +\,9\,y +\,8\,x \,-2=$ ?

$\,16\,xy +\,6$ $\,7\,x +\,9\,y +\,10$ $\,7\,x +\,9\,y +\,6$ $\,15\,x +\,9\,y \,-2$ $\,-9\,x +\,9\,y +\,6$

$\,7\,y \times \,7\,x \,-8\,xy =$ ?

$\,41\,xy$ $\,6\,xy$ $\,57\,xy$ $\,7\,y +\,7\,x \,-8\,xy$ $\,-57\,xy$

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

$\,8\,\,x^2$ $\,-8\,\,x^2 +\,16\,x$ $\,-8\,\,x^2 \,-16\,x$ $\,-8\,\,x^2 +\,10\,x$ $\,8\,\,x^2 +\,16\,x$

$\,4\,x \,-\,\,x^2 +\,8 \,-9\,\,x^2 \,-7=$ ?

$\,\,x^2 +\,4\,x \,-10$ $\,-10\,\,x^2 +\,4\,x +\,1$ $\,-6\,\,x^2 +\,1$ $\,8\,\,x^2 +\,4\,x +\,1$ $\,-8\,\,x^2 +\,4\,x \,-15$

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

$\,2\,x +\,8\,y$ $\,-12\,x \,-8\,y$ $\,-12\,x \,-2\,y$ $\,-10\,xy +\,10\,yx$ $\,2\,x \,-2\,y$

$\,7 +\,3\times(\,-3\,x\,) +\,8 =$ ?

$\,9\,x +\,15$ $\,-30\,x +\,8$ $\,-9\,x +\,15$ $\,-9\,x \,-1$ $\,0\,x +\,15$