Translate the following statement into a mathematical equation: the product of four and a number, plus six, is eighteen.
4(n + 6) = 18
4n + 6 = 18
6n + 4 = 18
4 + n + 6 = 18

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.