\[(4x + 3) - (10x + 11) =\]
\[= 7 + (13 - 4x)\]
\[4x + 3 - 10x - 11 = 7 + 13 - 4x\]
\[- 6x + 4x = 20 - 3 + 11\]
\[- 2x = 28\]
\[x = 28\ :( - 2)\]
\[x = - 14.\]