anyone24 anyone24

16-05-2016
Mathematics

contestada

Solve this system of equations using any method. 2x – y = 5 4x + y =7

Respuesta :

soorvora soorvora

16-05-2016

Substitute on equation 2, y = -4x + 7. so equation 1 becomes 2x - (-4x + 7) = 6x - 7 = 5. 6x = 12, so x = 2. from above, y = -4x+7 = -4(2) + 7 = -1

Answer Link

Otras preguntas

alcohol has witch of the following effects? A) Lowers social inhibitions B) causes hallucinations C) increases reaction time D) ability to make healthy deci

The system of equations 3x – 6y = 20 and 2x – 4y = 3 isA. inconsistent.B. dependent.C. consistent.D. independent.

Given the following three measures of angles or sides, determine if it is possible to construct a unique triangle, more than one triangle, or no triangle. sid

_______ conjunctions are found in pairs.

Compare and contrast the early adolescence period to the late adolescence period

What is the coldest layer of the Earth's atmosphere?

Given: x - 5 > -10. Choose the solution set. {x | x R, x < -15} {x | x R, x > -5} {x | x R, x < 5} {x | x R, x > 15}

What are the problems of sinkholes flooding in the area of the first time?.

molecules have properties that are different than ____________that form them

how do you solve equations like this: 7 5/6? can someone explain it? (7 5/6 is just an example)