A variable is an alphabetic character representing a number that is not fully specified or unknown. Making algebraic computations with variables as if they were explicit numbers allows one to solve a range of problems in a single computation.
Seeing the word than in a mathematical problem usually indicated addition or subtraction.
subtraction
Division. Multiplication is repeated addition.
The difference is the answer in a subtraction problem.
subtraction
Seeing the word than in a mathematical problem usually indicated addition or subtraction.
Product is the answer in a multiplication problem; Sum is the answer in an addition problem; Quotient is the answer in a division problem; Difference is the answer in a subtraction problem.
subtraction
It means that A*(B+C) = A*B + A*C and similarly for subtraction.
Sequence that has addition or (subtractions*) subtraction will be +(-4)
Brackets Exponents Division Multiplication Addition Subtraction
Division. Multiplication is repeated addition.
The difference is the result in a subtraction problem.
The difference is the result in a subtraction problem.
subtraction
The difference is the answer in a subtraction problem.
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