Solve by means of a combination of substitution and addition elimination
2x-y+3z=-14
4x+2y-z=12
6x-3y+4z=-22

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Use the equation and type the ordered-pairs. y = 2 ^x

Factor 15x^3 - 5x^2 +6x-2 by grouping. what is the resulting expression