Inequalities are not reflexive. Inequalities are not commutative.
Somewhat, but the rules are a bit different for inequalities. Example. -2X > 4 X < - 2 See, sign changes when dividing by negative coefficient.
Rene' Descartes is credited with founding rational root theorem. He also created the rules of signs to be used with solving equations.
The main rules of solving the Rubik's Magic mechanical puzzle is you can match the silver rings and color squares, which can make it more complicated. A similar classification can also be obtained for the heart shaped forms of the puzzle.
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The rules for solving word problems are read the problem, decide what you need to do, solve the problem, and check your answer.
The answer will not be the same if you do not follow the order of operations. PEMDAS is the way most people remember it. It tells you what to do first and you need to know this to do the problems correctly. If not, you will often have the wrong answer.
formula expression
work = force x distance time = distance : time power = work : time force = ?
The equations of motions.
IF they are math related, write appropriate equations and then apply math rules to solve the equations.
Scientific Law.