He was a brilliant mathematician better known by his nickname, Fibonacci.

It is defined as “the method of human communication, either spoken or written, consisting of the use of words in a structured way.

It is a mark or character used as a conventional representation of an object, function, or process.

It is a set that contains only one element.

It is a set that the elements in a given set is countable.

It is a set that elements in a given set has no end or not countable.

Two sets with equal number of cardinality and the element/s are identical.

Two sets with only exact number of element/s.

These are sets with common element/s.

Twelve more than a number.

Eight minus a number.

Six times a number is fifty-four.

An unknown quantity less fourteen.

Twice a number less eight is equal to one more than three times the number.

Thrice the sum of two consecutive numbers.

Three more than seven times a number is nine less than five times the number.

The sum of two consecutive even numbers.

Nine less a number is four times the square of the number.

Two ninths less than a number is 4 less the number.

6xy - (-xy) + 12x + 5y - 3x - 7y

- (11x – 4y + 2) + (14x + 2y) - 3(2x - 6y + 9)

(3x + 2) (4x – 8)

3xy - { -3x – [(-2xy + 3y + 4x) – 7] - 5xy - 5y + x} + (3x +2y)