Answer
$(-\infty,2]$
Work Step by Step
$8x-7\leq7x-5$
Solve for x. Subtract 7x from each side and add 7 to each side to isolate x one one side of the equation.
$8x-7-7x+7\leq7x-5-7x+7$
$x\leq2$
This is written in interval notation as $(-\infty , 2]$
The use of ] indicates that 2 is included in the set of possible values for x.