what is a coefficient in math?

In mathematics, a coefficient is a numerical or constant factor or multiplier that appears in front of a variable, term, or expression. It is used to scale or adjust the value of the variable or term. For example, in the expression 5x, the coefficient is 5 as it is multiplied by the variable x. Similarly, in the equation 2x + 3y = 7, the coefficients are 2 and 3, which determine the scaling of the variables x and y.