IN MATHEMATICS AND COMPUTER PROGRAMMING, THE ORDER OF OPERATIONS (SOMETIMES CALLED OPERATOR PRECEDENCE) IS A RULE USED TO CLARIFY WHICH PROCEDURES SHOULD BE PERFORMED FIRST IN A GIVEN MATHEMATICAL EXPRESSION.
A SOLUTION OF THE EQUATION IS AN ASSIGNMENT OF EXPRESSIONS TO THE UNKNOWNS THAT SATISFIES THE EQUATION; IN OTHER WORDS, EXPRESSIONS SUCH THAT, WHEN THEY ARE SUBSTITUTED FOR THE UNKNOWNS, THE EQUATION BECOMES AN IDENTITY.
A RATIONAL NUMBER IS A NUMBER THAT CAN BE WRITTEN AS A RATIO. THAT MEANS IT CAN BE WRITTEN AS A FRACTION, IN WHICH BOTH THE NUMERATOR (THE NUMBER ON TOP) AND THE DENOMINATOR (THE NUMBER ON THE BOTTOM) ARE WHOLE NUMBERS.
AN ALGEBRAIC EXPRESSION IS A MATHEMATICAL PHRASE THAT CAN CONTAIN ORDINARY NUMBERS, VARIABLES (LIKE X OR Y) AND OPERATORS (LIKE ADD,SUBTRACT,MULTIPLY, AND DIVIDE). HERE ARE SOME ALGEBRAIC EXPRESSIONS: A + 1 A - B 3X X - A / B.