Solve the following equation:
$3x-8=x$3x−8=x
$10x+4=6x$10x+4=6x
$4x+24=x+15$4x+24=x+15
$-72-9x=-32-x$−72−9x=−32−x
Create equations and inequalities in one variable and use them to solve problems.
Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations.