Which equation has no solution?
|-x – 31 = 5
12x - 1) = 0
15 - 3x = -8
|-x + 91 = 0

Write a numerical expression that satisfies all of the following conditions. 1.)the only number used in the expression is 5 2.)at least one exponent other than 1 is used 3.)when the expression is evaluated, the answer is greater than 40 and less than 50

3x + 4y = 5 x- 3y = -7 solve by substitution

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship