SAT Mathematics Practice Test 6

The equation can be solved using the steps shown below.
$2\left(5\mathit{x}-20\right)-15-8\mathit{x}=7$
$2\left(5\mathit{x}\right)-2\left(20\right)-15-8\mathit{x}=7$ (Apply the distributive property.)
$10\mathit{x}-40-15-8\mathit{x}=7$ (Multiply.)
$2\mathit{x}-55=7$ (Combine like terms.)
$2\mathit{x}=62$ (Add 55 to both sides of the equation.)
$\mathit{x}=31$ (Divide both sides of the equation by 2.)