heavrilbekayra heavrilbekayra

04-05-2016
Mathematics

contestada

Solve the system by the elimination method. Check your work. 3a + 5b - 7 = 0 a - 2b - 4 = 0

Respuesta :

meerkat18 meerkat18

11-05-2016

3a + 5b - 7 = 0
0a - 2b - 4 = 0

-2b = 4 - 0a
b = (4 - 0a)/ -2
b = -2

3a + 5b - 7 = 0
3a + 5(-2) - 7 = 0
3a - 10 - 7 = 0
3a - 17 = 0
3a = 17
a = 17/3 or 5 2/3

Answer Link

Otras preguntas

What is a cottage industry? Why were they phased out

Which of the following equations has positive slope and a negative y-intercept?

Please hurry What are sensory organs and what type of stimuli do these receptors respond to?

what does the Illiad have in common with the odyssey?

What is the significant difference between a park and a nature reserve? A) A park is for people; a nature reserve is for resource conservation. B) A park is f

What are three parts of the peripheral nervous system? Someone wanna talk

17. Parlament passed the Quartering Act in 1765. This Act gave British Officials the right to search warehouses and ships belonging to colonists. These searches

Explain the major differences between the North and the South that led to the Civil War.

The human side of "place" can be a. human ideas or actions. b. density of population. c. language patterns. d. all of the above. Please select the best answer f

Castaway of the Flying Dutchman