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Q: What is the variable in this algebraic expression 7d 2?

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The variable is "d".

7 is the coefficient of the variable d

By definition a term is the basic unit of algebra which must contain 3 parts - a sign, a coefficient and a variable (e.g., 2n [+ sign implied, coefficient '2' and variable 'n'] and -7d). In the expression 2n-4-7d then, there are 2 terms.

(c+4)/2

A variable is a letter that represents a number. A n expression that contains at least one variable is called a variable expression or an algebraic expression.A variable expression has one or more terms. A term is a number, a variable, or a product of numbers and variables.An algebraic expression consisting of only one term is called a monomial (3x, xy, 2y, xyz); of two terms is called a binomial (x + y, x^2 - 1, a + 2b); of three terms is called trinomial (x + 2y - 4, 3x^2 + 2xz +3). In general, an algebraic expression consisting of two or more terms is called a polynomial

Related questions

The variable is d, in the algebraic expression 7d+2

The variable is "d".

7 is the coefficient of the variable d

what is the constant in algebraic experssion 7d+2

The coefficient would be the number multiplied by the variable, in this case: 7

2

7d + 2 7 is the only coefficient

By definition a term is the basic unit of algebra which must contain 3 parts - a sign, a coefficient and a variable (e.g., 2n [+ sign implied, coefficient '2' and variable 'n'] and -7d). In the expression 2n-4-7d then, there are 2 terms.

You have to substitute a value for the letter variable in the expression. This is what we call evaluating the algebraic expression. An example would be 3x+1=7, when x=2.

d is the variable here.

The coefficient is the number in front of the variable a, or 5.

(c+4)/2

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